Year	including construction (constant 2010 US$)
1991	26019.422130302
1992	25820.5577406587
1993	26472.7374274665
1994	27633.9384553212
1995	27838.8017285942
1996	28442.6538433777
1997	28603.2396181351
1998	27940.1414327102
1999	27474.4769625101
2000	27781.7002438655
2001	27491.2454658151
2002	26763.7971530827
2003	26599.3473668869
2004	27509.1484703631
2005	27238.1832386083
2006	27439.181587642
2007	27524.9650677229
2008	27479.6806808786
2009	26752.0240029515
2010	28573.755250774
2011	28514.9434705725
2012	27757.6350444747
2013	28074.4869943801
2014	27220.1693477631
2015	24643.0070860779
2016	24715.8746475112
2017	24516.8525406472
2018	24424.6132949319