Year	Millions of 2000 Dollars
1960-01-01	20227.4
1961-01-01	22528.2
1962-01-01	25267.6
1963-01-01	27799.9
1964-01-01	31306.3
1965-01-01	34453.3
1966-01-01	36676.3
1967-01-01	39157.2
1968-01-01	41114.0
1969-01-01	43438.6
1970-01-01	46405.1
1971-01-01	56277.1
1972-01-01	64496.7
1973-01-01	78341.0
1974-01-01	90890.6
1975-01-01	93037.2
1976-01-01	114300.0
1977-01-01	129319.0
1978-01-01	153547.0
1979-01-01	157670.0
1980-01-01	142200.0
1981-01-01	124974.0
1982-01-01	127083.0
1983-01-01	111081.0
1984-01-01	99786.4
1985-01-01	130003.0
1986-01-01	175950.0
1987-01-01	220549.0
1988-01-01	200011.0
1989-01-01	218388.0
1990-01-01	249970.0
1991-01-01	260363.0
1992-01-01	254468.0
1993-01-01	244386.0
1994-01-01	277699.0
1995-01-01	309052.0
1996-01-01	283105.0
1997-01-01	246647.0
1998-01-01	246647.0
1999-01-01	234556.0
2000-01-01	213556.0
2001-01-01	162139.0
2002-01-01	191318.0
2003-01-01	242831.0
2004-01-01	268068.0
2005-01-01	251948.0
2006-01-01	298221.0
2007-01-01	376562.0
2008-01-01	396762.0
2009-01-01	390873.0
2010-01-01	353560.0
2011-01-01	347291.0
2012-01-01	358138.0
2013-01-01	378594.0
2014-01-01	345670.0
2015-01-01	321032.0
2016-01-01	322509.0