Year	Millions of 2000 Dollars
1960-01-01	1047.600
1961-01-01	971.633
1962-01-01	1280.610
1963-01-01	1431.440
1964-01-01	1558.430
1965-01-01	1652.640
1966-01-01	1830.640
1967-01-01	1712.650
1968-01-01	2108.850
1969-01-01	2366.370
1970-01-01	2572.660
1971-01-01	3282.180
1972-01-01	3296.920
1973-01-01	3509.270
1974-01-01	4156.130
1975-01-01	4271.300
1976-01-01	4306.450
1977-01-01	4515.030
1978-01-01	2599.410
1979-01-01	2480.240
1980-01-01	2903.300
1981-01-01	3149.560
1982-01-01	4145.410
1983-01-01	2776.950
1984-01-01	2019.870
1985-01-01	2324.140
1986-01-01	3392.340
1987-01-01	3804.720
1988-01-01	5066.680
1989-01-01	4508.300
1990-01-01	4165.430
1991-01-01	2226.660
1992-01-01	3237.000
1993-01-01	2794.550
1994-01-01	3423.070
1995-01-01	3580.790
1996-01-01	4819.780
1997-01-01	5292.460
1998-01-01	5541.350
1999-01-01	5286.590
2000-01-01	4325.140
2001-01-01	5782.820
2002-01-01	5512.940
2003-01-01	4973.790
2004-01-01	5526.360
2005-01-01	5532.790
2006-01-01	6003.590
2007-01-01	6185.280
2008-01-01	5730.550
2009-01-01	6447.260
2010-01-01	7012.290
2011-01-01	7098.680
2012-01-01	6376.510
2013-01-01	6424.670
2014-01-01	7119.010
2015-01-01	7787.060
2016-01-01	7894.870