"Year","Probability of Moving DOWN from P60-100 to P0-40","Probability of Moving UP from P0-40 to P60-100"
1937,6.888019,6.002125
1938,4.774633,7.200585
1939,3.469477,8.920341
1940,4.054089,10.92804
1941,5.634519,12.06050
1942,6.863656,11.10772
1943,6.808172,8.416306
1944,6.929443,8.958265
1945,7.34972,12.18522
1946,6.329626,11.09254
1947,5.397643,7.799034
1948,5.165893,6.389172
1949,4.317597,6.70629
1950,3.779346,7.119768
1951,3.733866,6.188704
1952,3.927278,5.11457
1953,4.216313,4.829378
1954,3.872354,5.060517
1955,3.543641,4.980437
1956,4.126183,4.531152
1957,5.423738,4.166729
1958,3.114653,5.632994
1959,3.128467,4.138972
1960,3.264650,3.167929
1961,2.787716,4.048006
1962,2.811468,3.515018
1963,2.812827,3.718048
1964,2.578994,4.038
1965,2.536780,4.074607
1966,2.713234,3.351752
1967,2.642667,3.697921
1968,2.744323,3.814057
1969,3.521065,3.460850
1970,3.744977,3.611592
1971,3.235180,4.410452
1972,3.056011,5.118315
1973,3.533900,4.2436
1974,4.587961,3.676087
1975,3.414352,4.915283
1976,3.199624,4.777578
1977,3.183526,4.779843
1978,3.412933,4.563389
1979,4.276798,3.850928
1980,3.714744,4.060823
1981,4.882898,3.51408
1982,4.246949,3.792784
1983,3.248107,4.874339
1984,3.369592,3.933178
1985,3.732436,3.555889
1986,3.419428,3.553590
1987,3.134025,3.733072
1988,3.153082,3.412136
1989,3.356372,3.103556
1990,3.70796,2.653550
1991,3.429525,2.819798
1992,3.206653,3.138927
1993,3.025711,3.287078
1994,3.007312,3.221954
1995,2.850429,3.122990
1996,2.721668,3.16046
1997,2.716601,3.124946
1998,2.869718,2.999738
1999,2.861121,3.267204
2000,3.249105,2.918913
2001,3.710091,2.565224
2002,3.397866,2.944393
2003,3.207433,3.270871