Year % of current health expenditure 2000 0.39864129 2001 0.46248123 2002 0.78767413 2003 1.08487773 2004 1.34776056 2005 0.63327235 2006 0.29296973 2007 1.27529931 2008 0.78664064 2009 1.64205134 2010 0.45711282 2011 0.65455669 2012 0.93984002 2013 0.32120803 2014 1.01806724 2015 1.09044969 2016 0.31129405 2017 0.29096925 2018 0.18119994 2019 0.73660624 2020 2.04626346 2021 3.62300873