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 0.01166 1994 0.0767 1995 0.24967 1996 0.32065 1997 0.85244 1998 1.56066 1999 4.33873 2000 9.22755 2001 19.54468 2002 33.02212 2003 44.86061 2004 61.08188 2005 81.27427 2006 108.2421 2007 130.79878 2008 138.86222 2009 140.21969 2010 137.75161 2011 142.39777 2012 147.47151 2013 144.32453 2014 131.35886 2015 128.10542 2016 125.83435 2017 120.44354