Year per Person 1980 0.00121 1981 0.04292 1982 0.08306 1983 0.08154 1984 0.15479 1985 0.28569 1986 0.26767 1987 0.26287 1988 0.25833 1989 0.56398 1990 0.63014 1991 0.52408 1992 0.4212 1993 0.5097 1994 0.53447 1995 0.67682 1996 0.54695 1997 0.66403 1998 0.85985 1999 0.78475 2000 1.11576 2001 1.2536 2002 1.47314 2003 1.05646 2004 1.10648 2005 0.94442 2006 0.95528 2007 0.94992 2008 0.93057 2009 0.88715 2010 0.89704 2011 0.91553 2012 0.90235 2013 0.92437 2014 0.80709 2015 0.78744 2016 0.78508