Year	current US$
1991	13121690.75
1992	13121690.75
1993	19035453.8
1994	13549326.9
1995	11889422.1842101
1996	10944120.2784139
1997	11473039.2018951
1998	11940063.3577349
1999	11563067.954828
2000	12288924.7753501
2001	11945690.1547932
2002	14956026.5809893
2003	24667878.3036332
2004	24741026.6653912
2005	25849505.6858784
2006	28471593.1150511
2007	28640397.0268004
2008	30328436.1442936
2009	32466619.0264515
2010	32641049.7352592
2011	32359709.8823437
2012	33265624.2087316
2013	39787081.9993135
2014	37879597.7965463
2015	39713933.6375555
2016	40237225.7639784
2017	41323197.5962323
2018	59857867.1063071
2019	79461628.0574608
2020	64055457.7118067
2021	79433494.0721693
2022	56560555.7507071
2023	57950401.600831