Year	including construction (constant 2015 US$)
1991	12020.976386955135
1992	13422.575602043473
1993	13387.922954406702
1994	13704.966128138285
1995	14791.550556245698
1996	15369.544807633114
1997	17666.66940321116
1998	21798.456220289896
1999	23986.649987328557
2000	25996.273205068166
2001	32400.845737414158
2002	32368.272403343963
2003	32822.856764612035
2004	34273.91401721622
2005	34094.38928393645
2006	36413.703268048106
2007	35350.592013783455
2008	35206.70574661301
2009	32915.22375121894
2010	33612.67035625692
2011	35322.252154861206
2012	36899.84343672861
2013	36532.23391151654
2014	36476.53397117846
2015	37193.07247103713
2016	37672.66408778014
2017	37854.0436193756
2018	38532.127255748805
2019	39110.45150704598
2020	38539.90276906443
2021	40498.62139044566
2022	44515.750170659274
