Year % of population 1990 0 1991 0.0003964645378138767 1992 0.0013687172672294011 1993 0.0037450780272997846 1994 0.009573589039633791 1995 0.030624716926895133 1996 0.07414898451272013 1997 0.15218662142460895 1998 0.3502484709090136 1999 0.7335485660339135 2000 1.5053064032772292 2001 2.1413210837504417 2002 3.6535464890560334 2003 4.703374076099972 2004 5.9706285282068885 2005 7.039158767289552 2006 8.607657374111263 2007 11.2440450045951 2008 14.013590672656148 2009 16.854229896821725 2010 20.534259830501735 2011 23.54323400802882 2012 26.06117263858837 2013 28.381741878112674 2014 30.777407388920043 2015 33.59968076563235 2016 36.689580380354045 2017 39.35672358795031 2018 43.33057774770567 2019 49.27805880402298 2020 56.671118768441005 2021 60.19289538308979