"Year","Probability of Staying in P60-100","Probability of Staying in P0-40"
1937,84.27952,73.98452
1938,87.46708,72.69347
1939,89.71068,69.98657
1940,89.11482,65.98905
1941,86.57085,64.06045
1942,84.24655,67.01262
1943,84.14977,71.19347
1944,84.08166,69.92094
1945,83.00253,66.95036
1946,83.65254,69.33737
1947,84.84666,74.07005
1948,85.46785,76.19932
1949,87.0247,75.1735
1950,87.88883,74.76929
1951,87.80403,77.132
1952,87.59326,79.63553
1953,87.53316,80.08722
1954,88.45153,79.2563
1955,88.91519,79.36372
1956,87.76028,79.9363
1957,85.63975,79.88234
1958,88.5513,77.88975
1959,88.9475,80.15272
1960,89.48444,81.52661
1961,90.46026,79.91985
1962,90.49895,81.07224
1963,90.75861,80.26
1964,91.03932,79.46407
1965,91.00337,78.4566
1966,90.17675,80.48345
1967,90.54233,79.55111
1968,90.41103,78.90748
1969,88.47672,80.41895
1970,88.4628,80.02438
1971,89.67706,77.54372
1972,90.14157,76.19671
1973,88.94649,77.9523
1974,87.25247,79.25973
1975,89.99262,75.9499
1976,90.36912,76.54922
1977,90.6819,76.67234
1978,90.27743,77.91506
1979,88.71601,79.3758
1980,89.63805,79.4584
1981,88.02594,80.15375
1982,89.87657,79.16223
1983,91.11955,77.49325
1984,90.75279,79.08629
1985,90.28375,79.78825
1986,90.5097,79.85142
1987,91.0723,79.27572
1988,90.7692,80.38082
1989,90.30248,81.58047
1990,89.88176,82.57337
1991,90.67207,82.11821
1992,91.15352,81.44498
1993,91.33815,80.94863
1994,91.20787,81.36885
1995,91.03415,81.90075
1996,91.2482,81.73756
1997,91.03601,81.78615
1998,90.83429,82.20626
1999,90.56514,82.2328
2000,89.80531,83.14919
2001,89.854,83.38486
2002,90.35346,83.08745
2003,90.99813,81.44464