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 1997 0 1998 0.90979 1999 5.4122 2000 12.85569 2001 18.93312 2002 18.66701 2003 24.66155 2004 28.58096 2005 30.37861 2006 43.68185 2007 60.16259 2008 76.33726 2009 94.65721 2010 117.29867 2011 141.3839 2012 147.49935 2013 152.53823 2014 157.26964 2015 157.31177 2016 146.16027 2017 141.40787