yrclass,age0,age5,maycv,yep
1958,4532,775,0.24125,66000
1959,22996,2310,0.16319,34000
1960,628,2990,0.46056,35000
1961,879,1400,0.33028,54000
1962,14747,1130,0.22618,68000
1963,13205,790,0.20596,37000
1964,31793,1195,0.19229,29000
1965,10621,981,0.20363,11000
1966,22271,870,0.3452,6000
1967,8736,1104,0.27511,NA
1968,8761,883,0.10884,NA
1969,18885,1421,0.17799,18410
1970,10098,1198,0.2106,NA
1971,3394,760,0.22098,NA
1972,1697,1354,0.39461,NA
1973,25159,1308,0.19696,NA
1974,14093,2016,0.20992,NA
1975,1932,962,0.33459,NA
1976,2292,976,0.24803,NA
1977,17386,1062,0.19815,12274
1978,5334,1945,0.32837,NA
1979,6957,2073,0.4162,NA
1980,1036,1458,0.26409,NA
1981,16345,946,0.25728,17174
1982,6149,1952,0.27111,36262
1983,10366,1280,0.18882,28242
1984,16795,851,0.28661,7153
1985,14599,394,0.12269,3132
1986,15299,2121,0.18605,17690
1987,13882,452,0.14723,33869
1988,4351,396,0.18968,28101
1989,4262,603,0.34298,29653
1990,35607,735,0.19256,14480
1991,4876,1261,0.32032,23926
1992,12331,1011,0.23614,12549
1993,19690,988,0.212,15060
1994,30225,853,0.26766,14409
1995,4136,683,0.17347,8603
1996,1325,472,0.36654,13574