hWYEARNTOTALSSHNSPCHN 1978.0 200.0 1979.0 320.0 1980.0 456.0 2.0 1981.0 219.0 1982.0 210.0 8.0 1983.0 160.0 12.0 1984.0 179.0 2.0 1985.0 112.0 0.0 1986.0 1987.0 300.0 1988.0 624.0 28.0 1989.0 347.0 1990.0 543.0 6.0 1991.0 827.0 0.0 1992.0 367.0 0.0 1993.0 601.0 15.0 1994.0 990.0 1.0 1995.0 830.0 50.0 1996.0 396.0 21.0 1997.0 339.0 3.0 1998.0 149.0 7.0 1999.0 187.0 8.0 2000.0 370.0 0.0 2001.0 960.0 2002.0 971.0 0.0