Year,Fall_kg_tow
1960,
1961,
1962,
1963,1.953
1964,0.914
1965,1.4
1966,3.188
1967,0.828
1968,1.62
1969,1.297
1970,1.801
1971,1.594
1972,2.169
1973,1.694
1974,0.486
1975,1.564
1976,0.507
1977,2.078
1978,1.83
1979,1.558
1980,2.11
1981,1.101
1982,0.369
1983,0.939
1984,1.518
1985,2.053
1986,1.499
1987,0.975
1988,1.33
1989,0.497
1990,0.426
1991,0.603
1992,0.189
1993,0.513
1994,0.139
1995,0.121
1996,0.448
1997,0.722
1998,0.061
1999,0.202
2000,0.088
2001,0.196
2002,0.455
2003,0.406
2004,0.178
2005,0.227