Year,Comm_land_mt,Comm_discd_mt,F
1982,4906,48,0.2618
1983,6000,162,0.5046
1984,6660,100,0.6307
1985,6130,61,0.6785
1986,4610,25,0.5042
1987,3450,47,0.6034
1988,3262,60,0.7041
1989,2068,133,0.4399
1990,1465,184,0.2514
1991,1777,95,0.2486
1992,2227,171,0.2259
1993,2601,376,0.4469
1994,2665,422,0.5974
1995,2209,193,0.6274
1996,2087,254,1.1233
1997,1771,300,1.0632
1998,1848,286,0.6101
1999,2121,213,0.4663
2000,2439,115,0.47
2001,3019,224,0.6309
2002,3188,279,0.2799
2003,3124,381,0.2944
2004,2917,233,0.1987
2005,2652,,