Year Per 100 People 1960 0 1965 0 1970 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 0 1988 0 1989 0 1990 0 1991 0 1992 0 1993 0 1994 0 1995 0 1996 0.25033 1997 0.82251 1998 2.94895 1999 7.83819 2000 13.54304 2001 15.3783 2002 16.69739 2003 21.57583 2004 38.53593 2005 52.50738 2006 64.10707 2007 87.16859 2008 111.34663 2009 169.48954 2010 182.4305 2011 181.65655 2012 164.68768 2013 161.6438 2014 176.89843 2015 144.66034 2016 127.45702 2017 145.84639