Year	current US$
1991	2710000.03814697
1992	39999.9991059303
1993	79999.9982118607
1994	419999.986886978
1995	449999.988079071
1996	119999.997317791
1997	50000.0007450581
1998	119999.997317791
1999	289999.99165535
2000	579999.983310699
2001	1570000.05245209
2002	2299999.95231628
2003	3059999.94277954
2004	3380000.1144409203
2005	1730000.01907349
2006	360000.01430511504
2007	600000.023841858
2008	449999.988079071
2009	1279999.97138977
2010	1450000.04768372
2011	2319999.9332428
2012	2890000.10490417
2013	2859999.89509583
2014	5219999.79019165
2015	3769999.98092651
2016	1700000.04768372
2017	4619999.88555908
2018	2970000.02861023
2019	3680000.0667572
2020	2849999.90463257
2021	5190000.05722046
2022	4739999.771118159