Quarterly Millions of US Dollars
1972-10-01 10
1973-01-01 24
1973-04-01 24
1973-07-01 24
1973-10-01 24
1974-01-01 24
1974-04-01 24
1974-07-01 24
1974-10-01 24
1975-01-01 24
1975-04-01 24
1975-07-01 24
1975-10-01 24
1976-01-01 24
1976-04-01 24
1976-07-01 24
1976-10-01 24
1977-01-01 24
1977-04-01 24
1977-07-01 24
1977-10-01 24
1978-01-01 24
1978-04-01 24
1978-07-01 24
1978-10-01 24
1979-01-01 24
1979-04-01 24
1979-07-01 24
1979-10-01 14
1980-01-01 14
1980-04-01 14
1980-07-01 14
1980-10-01 14
1981-01-01 14
1981-04-01 14
1981-07-01 14
1981-10-01 14
1982-01-01 14
1982-04-01 14
1982-07-01 14
1982-10-01 14
1983-01-01 14
1983-04-01 14
1983-07-01 14
1983-10-01 14
1984-01-01 14
1984-04-01 14
1984-07-01 14
1984-10-01 14
1985-01-01 14
1985-04-01 14
1985-07-01 14
1985-10-01 14
1986-01-01 14
1986-04-01 14
1986-07-01 14
1986-10-01 14
1987-01-01 14
1987-04-01 14
1987-07-01 14
1987-10-01 14
1997-07-01 200
1997-10-01 200
1998-01-01 200
1998-04-01 450
1998-07-01 450
1998-10-01 450
1999-01-01 450
1999-04-01 450
1999-07-01 450
1999-10-01 450
2000-01-01 641
2000-04-01 641
2000-07-01 850
2000-10-01 861
2001-01-01 1006
2001-04-01 1393
2001-07-01 1417
2001-10-01 1655
2002-01-01 1652
2002-04-01 1999
2002-07-01 1795
2002-10-01 1818
2003-01-01 1616
2003-04-01 1625
2003-07-01 1629
2003-10-01 1646
2004-01-01 1883
2004-04-01 2006
2004-07-01 2046
2004-10-01 2299
2005-01-01 2263
2005-04-01 2265
2005-07-01 2262
2005-10-01 2499
2006-01-01 2766
2006-04-01 2799
2006-07-01 2796
2006-10-01 2824
2007-01-01 3182
2007-04-01 3193
2007-07-01 3005
2007-10-01 3185
2008-01-01 3245
2008-04-01 3592
2008-07-01 3512
2008-10-01 3490
2009-01-01 3191
2009-04-01 3220
2009-07-01 3238
2009-10-01 3229
2010-01-01 3197
2010-04-01 3154
2010-07-01 3203
2010-10-01 3193
2011-01-01 3622
2011-04-01 3231
2011-07-01 3198
2011-10-01 3178
2012-01-01 3192
2012-04-01 3166
2012-07-01 2919
2012-10-01 2923
2013-01-01 2917
2013-04-01 2921
2013-07-01 2928
2013-10-01 2932
2014-01-01 2932
2014-04-01 2930
2014-07-01 3714
2014-10-01 3525
2015-01-01 3525
2015-04-01 3225
2015-07-01 5225
2015-10-01 5225
2016-01-01 5225
2016-04-01 5225
2016-07-01 5968
2016-10-01 5968
2017-01-01 5968
2017-04-01 5543
2017-07-01 6412
2017-10-01 6412
2018-01-01 6412
2018-04-01 6412