Year,Comm_land_mt
1964,3045
1965,2617
1966,1563
1967,1142
1968,1295
1969,1383
1970,2133
1971,2897
1972,3145
1973,3401
1974,4005
1975,3818
1976,4299
1977,5484
1978,5053
1979,4299
1980,5053
1981,6423
1982,6945
1983,7218
1984,7770
1985,8306
1986,7065
1987,6373
1988,5317
1989,5131
1990,5474
1991,6159
1992,9582
1993,9147
1994,5692
1995,4814
1996,3659
1997,2515
1998,2592
1999,2798
2000,3214
2001,3685
2002,3424
2003,4563
2004,3595
2005,2668