Year	current US$
2001	61693233.0514191
2002	69068859.7169609
2003	83645894.1852443
2004	95342337.1250753
2005	115725858.395181
2006	127435448.361345
2007	134050245.514685
2008	166996536.292131
2009	169432746.441266
2010	179650661.720436
2011	216046386.074266
2012	227210081.997785
2013	187936536.027953
2014	252421424.259174
2015	183054802.357012
2016	227148144.47173
2017	265731945.342471
2018	300976439.777192
2019	316807906.224543
2020	369456756.035612
2021	426049350.460967