Year	hectares
1961	3324307
1962	3344059
1963	3173391
1964	3276286
1965	3229923
1966	3173221
1967	3184112
1968	3281413
1969	3252292
1970	3010051
1971	3135042
1972	3234904
1973	3255330
1974	3259091
1975	3132683
1976	3078339
1977	3004019
1978	3000942
1979	2929285
1980	2914867
1981	2790159
1982	2881298
1983	2907483
1984	2912433
1985	2870587
1986	2882848
1987	2844859
1988	2864563
1989	2816956
1990	2778569
1991	2885819
1992	2745991
1993	2770711
1994	2960322
1995	2780167
1996	2836289
1997	2954451
1998	2862743
1999	2420630
2000	2762701
2001	3080085
2002	2952970
2003	2885811
2004	3001698
2005	2933537
2006	2838236
2007	2764254
2008	2903443
2009	2882230
2010	2599986
2011	2679290
2012	2757920
2013	2816940
2014	2817260
2015	2697704
2016	2565875
2017	2402083
2018	2367960
2019	2458460
2020	2337650
2021	2361650
2022	2247110