Year % of population 1990 0 1991 0 1992 0 1993 0.0025902636883130335 1994 0.01801653172411169 1995 0.037524359055641984 1996 0.0966563571280113 1997 0.22581660336301987 1998 0.3424518793525524 1999 0.9228349919808563 2000 1.6617767721676346 2001 2.479887477832167 2002 5.324282156998149 2003 6.175393771827019 2004 8.448423441509858 2005 9.335493294142676 2006 11.664836049063258 2007 16.375914143699855 2008 20.642672546215067 2009 24.995556407062946 2010 30.161630967661722 2011 34.94737566149403 2012 39.4922413526567 2013 43.24346007267753 2014 48.22179275416821 2015 51.63395369109728 2016 55.99926506128593 2017 60.574544201773676 2018 67.81002744034399 2019 73.46830385062512 2020 76.95620890975104 2021 80.95123370170037