Year,Fall_kg_tow
1963,4.162
1964,0.907
1965,0.956
1966,0.735
1967,0.383
1968,0.205
1969,0.543
1970,0.441
1971,1.098
1972,1.804
1973,1.18
1974,0.536
1975,1.421
1976,1.439
1977,3.943
1978,3.19
1979,1.827
1980,3.814
1981,2.714
1982,1.323
1983,3.278
1984,2.975
1985,4.79
1986,2.919
1987,2.337
1988,3.099
1989,7.94
1990,4.263
1991,3.368
1992,2.426
1993,2.493
1994,4.732
1995,3.615
1996,2.643
1997,3.016
1998,5.073
1999,3.319
2000,6.501
2001,5.384
2002,6.473
2003,3.876
2004,1.664
2005,1.274