ID year quarter rff rt1 rt3 rt10
  1  1955 1    1.34333    1.51667    2.12333    2.64667 
  2  1955 2    1.50000    1.85333    2.37667    2.76333 
  3  1955 3    1.94000    2.25000    2.64000    2.94667 
  4  1955 4    2.35667    2.53333    2.74333    2.91000 
  5  1956 1    2.48333    2.56000    2.78000    2.90000 
  6  1956 2    2.69333    2.86667    3.07333    3.08333 
  7  1956 3    2.81000    3.07000    3.31667    3.27333 
  8  1956 4    2.92667    3.46667    3.57667    3.47333 
  9  1957 1    2.93333    3.39000    3.45000    3.40333 
 10  1957 2    3.00000    3.54000    3.64667    3.62667 
 11  1957 3    3.23333    3.96333    4.01333    3.92667 
 12  1957 4    3.25333    3.58667    3.63333    3.63333 
 13  1958 1    1.86333    2.16000    2.58667    3.04000 
 14  1958 2    0.94000    1.35000    2.10000    2.92333 
 15  1958 3    1.32333    2.38667    3.00000    3.50000 
 16  1958 4    2.16333    3.19333    3.66333    3.80000 
 17  1959 1    2.57000    3.50333    3.93333    3.99000 
 18  1959 2    3.08333    3.91667    4.26667    4.25667 
 19  1959 3    3.57667    4.60333    4.72333    4.50333 
 20  1959 4    3.99000    4.91667    4.91667    4.58333 
 21  1960 1    3.93333    4.57000    4.67000    4.48667 
 22  1960 2    3.69667    3.87000    4.24667    4.26000 
 23  1960 3    2.93667    3.07333    3.49000    3.83333 
 24  1960 4    2.29667    2.99333    3.51667    3.88667 
 25  1961 1    2.00333    2.87333    3.40000    3.78667 
 26  1961 2    1.73333    2.93667    3.39667    3.79000 
 27  1961 3    1.68333    3.01333    3.69333    3.98000 
 28  1961 4    2.40000    3.10000    3.65000    3.97333 
 29  1962 1    2.45667    3.20667    3.63333    4.01667 
 30  1962 2    2.60667    3.01667    3.39000    3.87333 
 31  1962 3    2.84667    3.18333    3.49667    3.99000 
 32  1962 4    2.92333    2.99667    3.36667    3.90333 
 33  1963 1    2.96667    3.02667    3.40000    3.89333 
 34  1963 2    2.96333    3.14333    3.55000    3.96333 
 35  1963 3    3.33000    3.52667    3.78333    4.03333 
 36  1963 4    3.45333    3.73000    3.94333    4.12000 
 37  1964 1    3.46333    3.82667    4.05333    4.18000 
 38  1964 2    3.49000    3.86000    4.06667    4.20000 
 39  1964 3    3.45667    3.76667    3.95667    4.19333 
 40  1964 4    3.57667    3.93000    4.04667    4.17333 
 41  1965 1    3.97333    4.01000    4.08000    4.20333 
 42  1965 2    4.07667    4.02000    4.10333    4.20667 
 43  1965 3    4.07333    4.08333    4.16333    4.24667 
 44  1965 4    4.16667    4.46333    4.52333    4.47333 
 45  1966 1    4.55667    4.93000    4.96333    4.77000 
 46  1966 2    4.91333    4.93333    4.98000    4.78000 
 47  1966 3    5.41000    5.51000    5.57667    5.14000 
 48  1966 4    5.56333    5.44000    5.40000    5.00333 
 49  1967 1    4.82333    4.60333    4.65000    4.58333 
 50  1967 2    3.99000    4.24667    4.62667    4.82000 
 51  1967 3    3.89333    5.12667    5.23333    5.24667 
 52  1967 4    4.17333    5.56333    5.64667    5.64333 
 53  1968 1    4.78667    5.47333    5.64667    5.61000 
 54  1968 2    5.98000    5.94333    5.89333    5.74333 
 55  1968 3    5.94333    5.51000    5.45000    5.46000 
 56  1968 4    5.91667    5.83667    5.75000    5.77000 
 57  1969 1    6.56667    6.36333    6.30667    6.17667 
 58  1969 2    8.32667    6.57333    6.53000    6.35333 
 59  1969 3    8.98333    7.65333    7.45667    6.85667 
 60  1969 4    8.94000    7.90000    7.77333    7.29667 
 61  1970 1    8.57333    7.55333    7.72667    7.36667 
 62  1970 2    7.88000    7.45333    7.72333    7.71333 
 63  1970 3    6.70333    6.93667    7.37667    7.46000 
 64  1970 4    5.56667    5.64667    6.32000    6.85333 
 65  1971 1    3.85667    4.05000    5.06000    6.01667 
 66  1971 2    4.56333    4.99333    5.83667    6.24667 
 67  1971 3    5.47333    5.75000    6.32667    6.48333 
 68  1971 4    4.75000    4.72667    5.39333    5.89000 
 69  1972 1    3.54000    4.40667    5.31667    6.03333 
 70  1972 2    4.30000    4.84333    5.69000    6.14333 
 71  1972 3    4.74000    5.15333    5.87667    6.29000 
 72  1972 4    5.14333    5.43667    6.00000    6.37333 
 73  1973 1    6.53667    6.31000    6.57000    6.60333 
 74  1973 2    7.81667    7.01667    6.81667    6.80667 
 75  1973 3   10.56000    8.50667    7.56000    7.20667 
 76  1973 4    9.99667    7.41333    6.87333    6.75333 
 77  1974 1    9.32333    7.35333    7.02333    7.05333 
 78  1974 2   11.25000    8.69000    8.15667    7.54333 
 79  1974 3   12.09000    9.01000    8.49333    7.96333 
 80  1974 4    9.34667    7.67333    7.61667    7.67000 
 81  1975 1    6.30333    6.30667    6.89667    7.54000 
 82  1975 2    5.42000    6.52667    7.44000    8.05000 
 83  1975 3    6.16000    7.52000    8.05667    8.29667 
 84  1975 4    5.41333    6.68000    7.56667    8.06333 
 85  1976 1    4.82667    5.97667    7.06000    7.75333 
 86  1976 2    5.19667    6.28000    7.14000    7.77333 
 87  1976 3    5.28333    6.01333    6.88000    7.73000 
 88  1976 4    4.87333    5.22667    6.00333    7.19000 
 89  1977 1    4.66000    5.42000    6.37667    7.35333 
 90  1977 2    5.15667    5.69333    6.41667    7.37000 
 91  1977 3    5.82000    6.28000    6.71333    7.35667 
 92  1977 4    6.51333    6.96000    7.23667    7.59667 
 93  1978 1    6.75667    7.31000    7.66000    8.01000 
 94  1978 2    7.28333    7.78667    8.07333    8.32000 
 95  1978 3    8.10000    8.44667    8.42667    8.49000 
 96  1978 4    9.58333    9.81667    8.99667    8.82000 
 97  1979 1   10.07333   10.30000    9.39000    9.10667 
 98  1979 2   10.18000    9.93667    9.26667    9.11333 
 99  1979 3   10.94667   10.15333    9.25667    9.10333 
100  1979 4   13.57667   12.27000   10.94667   10.44667 
101  1980 1   15.04667   13.93333   12.59000   11.98667 
102  1980 2   12.68667   10.28333   10.12333   10.47667 
103  1980 3    9.83667   10.13667   10.49000   10.95333 
104  1980 4   15.85333   13.84000   12.99000   12.42333 
105  1981 1   16.57000   14.12000   13.39000   12.96000 
106  1981 2   17.78000   15.12667   14.48667   13.75000 
107  1981 3   17.57667   16.32000   15.79000   14.84667 
108  1981 4   13.58667   13.54667   14.09000   14.08667 
109  1982 1   14.22667   14.33333   14.50000   14.29333 
110  1982 2   14.51333   13.79667   14.14333   13.93000 
111  1982 3   11.00667   11.84000   12.88333   13.11667 
112  1982 4    9.28667    9.13000   10.16000   10.66667 
113  1983 1    8.65333    8.86000    9.79667   10.56333 
114  1983 2    8.80333    9.18000    9.91333   10.54333 
115  1983 3    9.46000   10.29667   11.09000   11.62667 
116  1983 4    9.43000    9.95333   10.98667   11.68667 
117  1984 1    9.68667   10.17667   11.19000   11.94333 
118  1984 2   10.55667   11.54667   12.63667   13.20000 
119  1984 3   11.39000   11.81000   12.64000   12.86667 
120  1984 4    9.26667   10.01667   11.10333   11.74333 
121  1985 1    8.47667    9.39000   10.67667   11.58333 
122  1985 2    7.92333    8.46667    9.76333   10.81333 
123  1985 3    7.90000    7.99333    9.28667   10.33667 
124  1985 4    8.10333    7.85333    8.84333    9.76000 
125  1986 1    7.82667    7.45667    7.93667    8.55667 
126  1986 2    6.92000    6.60667    7.18000    7.60333 
127  1986 3    6.20667    5.99000    6.65667    7.30667 
128  1986 4    6.26667    5.79667    6.48333    7.26333 
129  1987 1    6.22000    5.92333    6.51667    7.19333 
130  1987 2    6.65000    6.76667    7.72000    8.34333 
131  1987 3    6.84333    7.12667    8.14667    8.87667 
132  1987 4    6.91667    7.24000    8.29000    9.12333 
133  1988 1    6.66333    6.78000    7.58333    8.41667 
134  1988 2    7.15667    7.30000    8.09667    8.91000 
135  1988 3    7.98333    8.00333    8.59333    9.10000 
136  1988 4    8.47000    8.52667    8.75333    8.95667 
137  1989 1    9.44333    9.29000    9.37667    9.20667 
138  1989 2    9.72667    8.92667    8.91667    8.77333 
139  1989 3    9.08333    8.09667    8.07333    8.10667 
140  1989 4    8.61333    7.82667    7.86333    7.90667 
141  1990 1    8.25000    8.12667    8.38333    8.42333 
142  1990 2    8.24333    8.27333    8.62333    8.67667 
143  1990 3    8.16000    7.82667    8.25000    8.70333 
144  1990 4    7.74333    7.30333    7.76000    8.39667 
145  1991 1    6.42667    6.43667    7.27000    8.01667 
146  1991 2    5.86333    6.24333    7.24667    8.13000 
147  1991 3    5.64333    5.88667    6.89333    7.94000 
148  1991 4    4.81667    4.86667    5.84000    7.34667 
149  1992 1    4.02333    4.35667    5.76667    7.30333 
150  1992 2    3.77000    4.22000    5.78000    7.37667 
151  1992 3    3.25667    3.41667    4.68333    6.61667 
152  1992 4    3.03667    3.56333    4.99667    6.74333 
153  1993 1    3.04000    3.40667    4.63667    6.28000 
154  1993 2    3.00000    3.38000    4.41000    5.99000 
155  1993 3    3.06000    3.42333    4.32000    5.61667 
156  1993 4    2.99000    3.52667    4.40667    5.60667 
157  1994 1    3.21333    3.91000    4.90333    6.06667 
158  1994 2    3.94000    5.13333    6.20000    7.08333 
159  1994 3    4.48667    5.60000    6.55667    7.33333 
160  1994 4    5.16667    6.59667    7.39667    7.83667 
161  1995 1    5.81000    6.72667    7.26667    7.48333 
162  1995 2    6.02000    5.97000    6.25000    6.62000 
163  1995 3    5.79667    5.65333    5.96000    6.32333 
164  1995 4    5.72000    5.44333    5.57667    5.89333 
165  1996 1    5.36333    5.12333    5.37667    5.91000 
166  1996 2    5.24333    5.66333    6.29000    6.72000 
167  1996 3    5.30667    5.78333    6.35667    6.78000 
168  1996 4    5.28000    5.48000    5.93667    6.34333 
169  1997 1    5.27667    5.64667    6.19000    6.56333 
170  1997 2    5.52333    5.85000    6.42333    6.69667 
171  1997 3    5.53333    5.54000    6.01333    6.24333 
172  1997 4    5.50667    5.48333    5.78000    5.90667 
173  1998 1    5.52000    5.31333    5.46000    5.58667 
174  1998 2    5.50000    5.41000    5.57000    5.59667 
175  1998 3    5.53333    5.09333    5.11000    5.20333 
176  1998 4    4.86000    4.39000    4.41000    4.67000 
177  1999 1    4.73333    4.66333    4.87333    4.98333 
178  1999 2    4.74667    4.88000    5.35333    5.54000 
179  1999 3    5.09333    5.16000    5.71333    5.88333 
180  1999 4    5.30667    5.60667    6.00000    6.14000 
181  2000 1    5.68000    6.18667    6.55667    6.48000 
182  2000 2    6.27333    6.21667    6.52000    6.17667 
183  2000 3    6.52000    6.13000    6.15667    5.89333 
184  2000 4    6.47333    5.90000    5.63333    5.56667 
185  2001 1    5.59333    4.59667    4.63667    5.05000 
186  2001 2    4.32667    3.78000    4.42667    5.27000 
187  2001 3    3.49667    3.30333    3.93333    4.98000 
188  2001 4    2.13333    2.24333    3.32667    4.77000 
