Year,Fall_num_tow,Fall_kg_tow
1967,1.570,0.242
1968,1.640,0.307
1969,0.590,0.073
1970,2.260,0.268
1971,1.680,0.337
1972,2.190,0.292
1973,1.470,0.353
1974,2.820,0.392
1975,8.740,1.417
1976,20.550,7.018
1977,12.620,3.740
1978,19.250,4.529
1979,19.420,6.053
1980,13.810,3.285
1981,27.100,9.340
1982,3.940,0.602
1983,1.730,0.233
1984,4.540,0.519
1985,2.380,0.355
1986,2.100,0.257
1987,15.830,1.527
1988,23.220,2.997
1989,22.430,3.307
1990,16.610,2.401
1991,5.210,0.691
1992,8.240,0.804
1993,10.420,1.595
1994,6.830,0.860
1995,8.010,0.700
1996,10.760,0.926
1997,5.830,0.521
1998,14.600,1.400
1999,1.390,0.192
2000,7.410,0.706
2001,4.488,0.323
2002,6.357,0.444
2003,28.456,1.946
2004,5.056,0.412
2005,11.000,0.700