"Year","1 year","5 years","11 years"
1951,7.042424,,,10.57517,,
1952,6.84226,,,10.45741,,
1953,6.444938,6.330852,,10.34761,10.49190,10.77051
1954,6.666408,6.18376,,10.57232,10.42653,10.79001
1955,6.551137,6.179413,,10.46312,10.54960,10.7256
1956,6.506084,6.201151,5.903125,10.57986,10.76605,10.80215
1957,6.357085,6.10528,5.84031,10.89325,10.7597,10.81895
1958,6.317195,5.99563,5.74613,11.05668,10.74985,10.81121
1959,6.195801,5.979317,5.7114,10.91019,10.95694,11.05353
1960,6.240911,5.91842,5.60128,10.99435,11.03859,11.08704
1961,6.183912,5.7932,5.54222,11.16102,11.01234,11.1162
1962,6.014956,5.781215,5.562515,11.15716,11.12841,11.20174
1963,5.972238,5.708063,5.575418,11.17413,11.17151,11.30862
1964,6.092189,5.755162,5.576243,11.22367,11.13925,11.33953
1965,6.071242,5.852519,5.605552,11.21296,11.17902,11.38805
1966,6.457403,5.985697,5.641429,11.23077,11.26146,11.45807
1967,6.39222,6.021991,5.646249,11.41126,11.29088,11.47251
1968,6.497054,6.08129,5.695123,11.36118,11.38931,11.47954
1969,6.445708,6.048888,5.796652,11.55158,11.52348,11.58333
1970,6.46623,6.024095,5.844325,11.75670,11.53211,11.73106
1971,6.323981,6.043247,5.910852,11.63087,11.50464,11.78801
1972,6.644957,6.227132,6.016895,11.83679,11.61371,11.75181
1973,6.835595,6.52079,6.146058,11.77095,11.80253,11.84583
1974,7.267586,6.718463,6.249587,11.64741,11.82096,11.97970
1975,7.542291,6.814124,6.326889,11.93486,11.68066,12.13679
1976,7.337699,6.937746,6.518414,11.90200,11.89639,12.26672
1977,7.642902,7.019845,6.733503,11.94634,12.05507,12.27101
1978,7.425786,7.13932,6.97359,12.38007,12.16378,12.28953
1979,7.32167,7.271549,7.195633,12.08383,12.24477,12.31331
1980,7.686537,7.424238,7.329319,12.22573,12.26959,12.39075
1981,7.685689,7.634235,7.496925,12.27565,12.36788,12.56482
1982,8.169011,7.873559,7.767935,12.57922,12.44931,12.73498
1983,8.406063,8.100123,8.166566,12.64536,12.54929,12.86686
1984,8.724781,8.47605,8.553512,12.64671,12.76709,12.91416
1985,8.784329,8.952753,8.946565,12.75340,12.87054,13.02948
1986,9.21744,9.517686,9.241805,12.90121,12.95415,13.07172
1987,10.41002,9.917594,9.574507,12.87421,13.00998,13.11065
1988,11.26183,10.36901,9.859608,13.04375,13.11910,13.13059
1989,10.96716,10.65104,10.09283,13.11381,13.16674,13.17613
1990,11.13387,10.87972,10.24896,12.99830,13.17758,13.25831
1991,10.55094,10.85277,10.41217,13.08858,13.173,13.35973
1992,11.62047,10.86250,10.69690,13.12423,13.19714,13.45976
1993,11.26471,10.8964,10.8924,13.35891,13.30789,13.53160
1994,10.89717,11.06953,11.09406,13.32326,13.42396,13.58024
1995,11.19637,11.24858,11.34793,13.47109,13.51056,13.62338
1996,11.56113,11.51431,11.56616,13.53525,13.56924,13.66295
1997,12.447,11.97916,11.70695,13.55281,13.65807,
1998,12.69505,12.46506,11.76276,13.59492,13.71963,
1999,13.27709,12.76012,11.92686,13.64067,13.75453,
2000,13.7949,12.64620,,13.75717,13.79002,
2001,13.04996,12.49504,,13.68418,13.78706,
2002,12.04007,12.37670,,13.60274,13.77420,
2003,12.23639,,,13.68411,,
2004,12.8679,,,13.74711,,