Year	constant 2021 PPP $
1991	9435.480124493384
1992	9374.609114007362
1993	9316.967270579042
1994	9060.353100099439
1995	8885.704071269061
1996	8818.368582141688
1997	8946.929214416497
1998	8965.404398975676
1999	9223.723898539143
2000	9425.326326014994
2001	9647.29876825352
2002	9090.854207412767
2003	9413.029606725177
2004	9772.462422580988
2005	9251.064028306417
2006	8955.581239445753
2007	8958.2534821542
2008	9161.494981708038
2009	9415.414883690526
2010	9635.154646338855
2011	8639.863982250588
2012	8802.445633264762
2013	8658.120570540457
2014	8118.666934319914
2015	8074.07238867294
2016	7866.1303142711195
2017	7862.909808225786
2018	8052.8434504775905
2019	8284.07492910519
2020	8206.123257722886
2021	8311.522571743299
2022	8373.00791653365
2023	8509.583315153635