year,stock,recruits
1950,0.6,NA
1951,15.228,15.030036
1952,18.252,45.26496
1953,11.196,42.959052
1954,13.652,27.413216
1955,21.942,31.113756
1956,27.212,9.496988
1957,26.414,6.445016
1958,55.984,4.086832
1959,45.128,5.821512
1960,50.85,2.7459
1961,97.349,3.115168
1962,63.148,2.020736
1963,41.562,1.704042
1964,24.234,0.775488
1965,15.503,0.170533
1966,7.779,2.287026
1967,4.294,2.177058
1968,4.669,1.340003
1969,0.686,0.742252
1970,0.784,0.861616
1971,0.167,0.939041
1972,3.896,1.663592
1973,7,2.03
1974,0.833,0.489804
1975,0.33,1.80906
1976,1.548,0.421056
1977,4.752,0.574992
1978,5.027,NA
1979,1.198,NA
1980,1.8,NA
1981,2.558,NA
1982,2.523,NA
1983,0.453,NA