Year,R_mnum,SSB_kmt,Jan1_B_kmt 1972,29.39,, 1973,52.19,21.9,32.27 1974,70.63,14.77,23.88 1975,24.73,8.97,20.26 1976,17.28,9.95,19.85 1977,54.44,8.35,14.11 1978,25.51,6.16,10.12 1979,24.03,8.42,14.23 1980,63,10.9,15.48 1981,22.85,10.41,15.52 1982,6.58,13.41,22.53 1983,10.84,11.35,17.73 1984,16.75,4.27,8.28 1985,8.47,3.51,4.13 1986,9.2,4.61,5.3 1987,22.88,3.49,4.94 1988,9.73,3.04,4.04 1989,11.54,6.65,6.39 1990,22.79,5.72,7.76 1991,18.34,4.52,6.2 1992,13.96,4.6,8.15 1993,10.66,4.24,7.19 1994,11.12,2.91,6.13 1995,13.18,2.65,4.33 1996,18.43,4.34,5.74 1997,23.89,5.67,7.71 1998,25.52,6.98,10.06 1999,20.98,9.54,12.6 2000,23.7,10.44,15.27 2001,15.91,9.44,14.88 2002,17.13,10.48,13.75 2003,11.88,10.39,14.43 2004,9.19,6.38,12.37 2005,,5.44,8