Year % of population 1990 0 1991 0.0022864304295037337 1992 0.009940674248424564 1993 0.021824774907930774 1994 0.04430104513954751 1995 0.10641813855241349 1996 0.3145693120953659 1997 0.6140109654044907 1998 1.238422677868532 1999 2.0592853159603255 2000 3.8920795398411423 2001 5.6328477572181495 2002 8.879600209393045 2003 11.319102339065784 2004 14.460267366789584 2005 16.699022182390326 2006 20.913144419944565 2007 23.943131538782264 2008 26.727651830202575 2009 31.325953631401152 2010 35.02515274449159 2011 39.74666344483637 2012 43.437231219387506 2013 46.44913215095389 2014 49.03645018307436 2015 54.64600591032678 2016 57.72648881304102 2017 60.248107495483865 2018 63.568040101302586 2019 68.70150497163591 2020 73.95262478048741 2021 76.19295658263947