Year	current international $
1991	2682.0949201123085
1992	3530.6004103843534
1993	4486.932146102791
1994	4535.549279993374
1995	4570.627080977781
1996	5002.367477913384
1997	5978.326365071097
1998	7897.2182131595555
1999	9113.812368280654
2000	10539.834543523508
2001	10623.305991336892
2002	9590.940848422088
2003	6008.845770265005
2004	9195.891223212939
2005	9360.637737425579
2006	10121.157509769024
2007	10681.812067865629
2008	11558.633132543338
2009	11597.946999985566
2010	12100.634359169895
2011	12825.637423309568
2012	14312.892271863175
2013	14585.939341506863
2014	13097.854498274353
2015	9285.69508851384
2016	9025.56885657337
2017	10118.658153054388
2018	11938.022025322836
2019	12139.156775110687
2020	10464.511633355905
2021	12596.526485820876
2022	14199.607361843273
2023	13968.574165120872