Year	current US$
1985	235.6525398588807
1986	430.1885010089687
1987	585.3049371759428
1988	397.01436018572025
1989	96.13036189065139
1990	96.7192957412953
1991	140.63100446173368
1992	141.38368520122413
1993	185.1871220269076
1994	224.63709452139324
1995	281.13360449916576
1996	329.0011899529932
1997	352.9344397970102
1998	352.7830680171194
1999	367.1568836823618
2000	394.5831365743577
2001	409.49773392655186
2002	434.81029214633156
2003	485.45090806895024
2004	551.9035051349123
2005	693.1898425003502
2006	790.5925163849212
2007	913.3123316017551
2008	1158.101627354174
2009	1225.8450094848652
2010	1684.0117718460776
2011	1953.557149687469
2012	2190.2324398771984
2013	2367.4993306893434
2014	2558.7787583495938
2015	2595.2348437295786
2016	2760.7171011171463
2017	2992.07153198845
2018	3267.2250691192667
2019	3491.0914099066317
2020	3586.3471762476265
2021	3759.948329015757
2022	4179.011790369632
2023	4346.768492378209