Year	current US$
2001	8846731.60758933
2002	10031321.8981923
2003	11831948.8571037
2004	12639577.2397228
2005	14051025.0543548
2006	14539083.5220275
2007	14169391.2822079
2008	14337487.1753679
2009	11512532.3129866
2010	9776441.15411104
2011	7395754.4989939
2012	9207216.75920138
2013	105170868.889664
2014	89244208.717996
2015	121194521.517827
2016	107984749.256242
2017	96941328.843125
2018	101743252.327635
2019	100369243.188022
2020	98722500.4013618
2021	96380207.519274