Year per 100,000 people 1990 3.16086804484155 1991 3.4123029084741 1992 2.5970742041197 1993 1.88326056374658 1994 1.70347210949855 1995 1.77902390706646 1996 1.67489843511673 1997 1.53357527225287 1998 1.5613272071584 1999 1.43822815348996 2000 1.34465234527074 2001 1.24396893288476 2002 1.12769624247935 2005 1.04811219872702 2006 1.06965777437625 2007 1.07352210054079 2008 1.03842635957681 2009 0.990550467530587 2010 0.88428340865344 2011 0.919602249037235 2012 0.880542812444273 2013 0.832330233088362 2014 0.787430402653034 2015 0.778644151753196 2016 0.672004707226636 2017 0.626624557496403 2018 0.599558175726844 2019 0.530739955972358 2020 0.47898693959757 2021 0.511475885697091