Year per 100,000 population 2000 20.252440893999534 2001 20.408542857257075 2002 20.465128846196478 2003 19.74904595291899 2004 19.289672516868578 2005 19.3785971125644 2006 19.22047977021733 2007 19.15470185840517 2008 18.820352406519234 2009 18.855139586619828 2010 18.737751009915954 2011 18.87873276854563 2012 18.481539375259178 2013 17.955427861680494 2014 17.296821986312818 2015 17.036061195195064 2016 16.869381020914 2017 16.795270578799897 2018 16.5993404259306 2019 16.504086104501553