Year	current US$
1980	12680000.3051758
1981	15520000.4577637
1982	11029999.7329712
1983	9149999.61853027
1984	5650000.09536743
1985	11670000.076293899
1986	9149999.61853027
1987	9560000.4196167
1988	12010000.2288818
1989	13060000.4196167
1990	4579999.92370605
1991	13560000.4196167
1992	10409999.8474121
1993	10319999.6948242
1994	6719999.79019165
1995	7750000
1997	50000.0007450581
1998	1330000.04291534
1999	5460000.03814697
2000	3500000
2001	3630000.1144409203
2002	4570000.17166138
2003	4869999.88555908
2004	4639999.8664856
2005	4510000.228881841
2006	3650000.09536743
2007	4139999.8664856004
2008	6500000
2009	3569999.9332428
2010	3440000.05722046
2011	2380000.1144409203
2012	4531669.13986206
2013	3988326.07269287
2014	3997893.09501648
2015	3696190.83404541
2016	1592326.8795013402
2017	1901918.8880920399
2018	1633020.04337311
2019	2629724.7409820603
2020	3054019.9279785203
2021	2832932.4722289997
2022	3052170.0382232703