Year	including construction (current US$)
1980	10668230769.23077
1981	10320142857.142857
1982	11201066666.666666
1983	9991166666.666666
1984	10548777777.777779
1985	10727526315.789474
1986	12961529411.764706
1987	17272000000
1988	13752176470.588236
1989	13059444444.444445
1990	10579090909.090908
1991	4350483870.967742
1992	4042113402.0618553
1993	3540914691.599623
1994	2904059040.590406
1995	3397433416.206399
1996	1993400378.8879583
1997	2464094622.7403994
1998	3199990570.0999455
1999	3044131795.178756
2000	3003870436.000989
2001	3401315416.0647554
2002	3937470600.2720304
2003	5142327416.947635
2004	6051176775.702507
2005	7237892223.846396
2006	8722480498.849781
2007	11668137858.642406
2008	13615038175.417707
2009	13821340421.35734
2010	12057841117.060936
2011	14451639740.943705
2012	13780372462.720882
2013	13129427581.99226
2014	13400243173.481865
2015	12210193442.250965
2016	13199534212.462505
2017	14227990527.34939
2018	14876619165.50933
2019	14943611699.387556
2020	15357877124.33569
2021	17523610691.17736
2022	22993203402.605793
2023	25768336608.142994