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 0.00224 1992 0.02884 1993 0.05844 1994 0.11087 1995 0.2291 1996 0.5322 1997 3.71234 1998 8.62543 1999 12.30285 2000 23.03551 2001 39.76534 2002 54.13518 2003 68.12688 2004 79.17822 2005 84.09715 2006 90.6399 2007 112.40638 2008 102.24468 2009 101.79606 2010 109.63526 2011 110.59572 2012 112.50484 2013 114.43803 2014 117.39889 2015 122.72776 2016 128.3913 2017 130.65702