Quarterly Millions of US Dollars
1972-01-01 49
1972-04-01 119
1972-07-01 129
1972-10-01 214
1973-01-01 214
1973-04-01 350
1973-07-01 388
1973-10-01 683
1974-01-01 776
1974-04-01 1140
1974-07-01 1170
1974-10-01 1242
1975-01-01 1306
1975-04-01 1361
1975-07-01 1407
1975-10-01 1407
1976-01-01 1468
1976-04-01 1524
1976-07-01 1560
1976-10-01 1639
1977-01-01 1756
1977-04-01 1807
1977-07-01 1851
1977-10-01 1919
1978-01-01 1983
1978-04-01 2062
1978-07-01 2124
1978-10-01 2224
1979-01-01 2224
1979-04-01 2224
1979-07-01 2224
1979-10-01 2224
1980-01-01 2224
1980-04-01 2224
1980-07-01 2224
1980-10-01 2224
1981-01-01 2224
1981-04-01 2224
1981-07-01 2224
1981-10-01 2224
1982-01-01 2224
1982-04-01 2224
1982-07-01 2224
1982-10-01 2224
1983-01-01 2224
1983-04-01 2224
1983-07-01 2224
1983-10-01 2124
1984-01-01 2124
1984-04-01 2124
1984-07-01 2124
1984-10-01 2124
1985-01-01 2124
1985-04-01 1989
1985-07-01 1951
1985-10-01 1656
1986-01-01 1562
1986-04-01 1499
1986-07-01 1469
1986-10-01 1396
1987-01-01 1283
1987-04-01 1158
1987-07-01 1103
1987-10-01 1017
1988-01-01 956
1988-04-01 900
1988-07-01 864
1988-10-01 786
1989-01-01 668
1989-04-01 573
1989-07-01 573
1989-10-01 506
1990-01-01 441
1990-04-01 362
1990-07-01 300
1990-10-01 300
1991-01-01 300
1991-04-01 1249
1991-07-01 1249
1991-10-01 1249
1992-01-01 1249
1992-04-01 1249
1992-07-01 1249
1992-10-01 1249
1993-01-01 1249
1993-04-01 1249
1993-07-01 1249
1993-10-01 1249
1994-01-01 1249
1994-04-01 949
1994-07-01 949
1994-10-01 949
1995-01-01 949
1995-04-01 949
1995-07-01 949
1995-10-01 1149
1996-01-01 1149
1996-04-01 1149
1996-07-01 1149
1996-10-01 1349
1997-01-01 1349
1997-04-01 1349
1997-07-01 1514
1997-10-01 1503
1998-01-01 1500
1998-04-01 1408
1998-07-01 1411
1998-10-01 1690
1999-01-01 1682
1999-04-01 2092
1999-07-01 2130
1999-10-01 2273
2000-01-01 2749
2000-04-01 2737
2000-07-01 2696
2000-10-01 2709
2001-01-01 2669
2001-04-01 2655
2001-07-01 2693
2001-10-01 2617
2002-01-01 2956
2002-04-01 3103
2002-07-01 3089
2002-10-01 3151
2003-01-01 3181
2003-04-01 3976
2003-07-01 4025
2003-10-01 4877
2004-01-01 5360
2004-04-01 6335
2004-07-01 6349
2004-10-01 7237
2005-01-01 7164
2005-04-01 7072
2005-07-01 7057
2005-10-01 7704
2006-01-01 7754
2006-04-01 7134
2006-07-01 7121
2006-10-01 8518
2007-01-01 8536
2007-04-01 8555
2007-07-01 8473
2007-10-01 8033
2008-01-01 8156
2008-04-01 8151
2008-07-01 7965
2008-10-01 7886
2009-01-01 8780
2009-04-01 8865
2009-07-01 8898
2009-10-01 8882
2010-01-01 10323
2010-04-01 10250
2010-07-01 10569
2010-10-01 10501
2011-01-01 10820
2011-04-01 10875
2011-07-01 11057
2011-10-01 10929
2012-01-01 12404
2012-04-01 12028
2012-07-01 11710
2012-10-01 11769
2013-01-01 13672
2013-04-01 12985
2013-07-01 13089
2013-10-01 13157
2014-01-01 14726
2014-04-01 14681
2014-07-01 14270
2014-10-01 14098
2015-01-01 13572
2015-04-01 13742
2015-07-01 13742
2015-10-01 12803
2016-01-01 14448
2016-04-01 14354
2016-07-01 14367
2016-10-01 13374
2017-01-01 15827
2017-04-01 16210
2017-07-01 16424
2017-10-01 16520
2018-01-01 18698
2018-04-01 18341