Quarterly Millions of US Dollars
1972-01-01 0
1972-04-01 0
1972-07-01 0
1972-10-01 0
1973-01-01 0
1973-04-01 0
1973-07-01 0
1973-10-01 0
1974-01-01 0
1974-04-01 0
1974-07-01 0
1974-10-01 0
1975-01-01 0
1975-04-01 0
1975-07-01 0
1975-10-01 0
1976-01-01 0
1976-04-01 0
1976-07-01 10
1976-10-01 10
1977-01-01 10
1977-04-01 10
1977-07-01 0
1977-10-01 0
1978-01-01 28
1978-04-01 54
1978-07-01 61
1978-10-01 61
1979-01-01 30
1979-04-01 105
1979-07-01 220
1979-10-01 221
1980-01-01 238
1980-04-01 190
1980-07-01 75
1980-10-01 154
1981-01-01 603
1981-04-01 650
1981-07-01 808
1981-10-01 767
1982-01-01 339
1982-04-01 503
1982-07-01 576
1982-10-01 887
1983-01-01 808
1983-04-01 593
1983-07-01 543
1983-10-01 368
1984-01-01 399
1984-04-01 404
1984-07-01 514
1984-10-01 859
1985-01-01 1177
1985-04-01 1911
1985-07-01 2040
1985-10-01 2109
1986-01-01 2087
1986-04-01 1382
1986-07-01 1592
1986-10-01 1155
1987-01-01 1218
1987-04-01 1522
1987-07-01 1590
1987-10-01 2017
1988-01-01 1872
1988-04-01 2658
1988-07-01 2691
1988-10-01 3576
1989-01-01 3945
1989-04-01 3460
1989-07-01 4799
1989-10-01 5171
1990-01-01 5403
1990-04-01 7087
1990-07-01 6981
1990-10-01 7429
1991-01-01 7735
1991-04-01 8370
1991-07-01 10071
1991-10-01 9327
1992-01-01 9868
1992-04-01 9189
1992-07-01 8544
1992-10-01 8897
1993-01-01 8450
1993-04-01 7430
1993-07-01 32862
1993-10-01 30817
1994-01-01 31531
1994-04-01 28316
1994-07-01 26272
1994-10-01 25808
1995-01-01 27816
1995-04-01 31379
1995-07-01 33717
1995-10-01 32910
1996-01-01 35212
1996-04-01 34502
1996-07-01 23417
1996-10-01 40604
1997-01-01 42003
1997-04-01 43196
1997-07-01 45196
1997-10-01 38945
1998-01-01 42017
1998-04-01 37450
1998-07-01 42317
1998-10-01 41250
1999-01-01 45564
1999-04-01 39846
1999-07-01 43983
1999-10-01 46428
2000-01-01 46810
2000-04-01 41853
2000-07-01 43172
2000-10-01 47838
2001-01-01 48375
2001-04-01 47880
2001-07-01 49414
2001-10-01 48914
2002-01-01 53315
2002-04-01 60297
2002-07-01 60109
2002-10-01 61162
2003-01-01 58310
2003-04-01 61210
2003-07-01 62182
2003-10-01 75153
2004-01-01 78940
2004-04-01 73738
2004-07-01 81463
2004-10-01 86777
2005-01-01 84105
2005-04-01 86835
2005-07-01 88543
2005-10-01 92182
2006-01-01 101847
2006-04-01 115464
2006-07-01 117568
2006-10-01 123336
2007-01-01 119040
2007-04-01 133738
2007-07-01 136455
2007-10-01 126543
2008-01-01 168829
2008-04-01 162331
2008-07-01 141192
2008-10-01 107694
2009-01-01 87285
2009-04-01 103821
2009-07-01 103878
2009-10-01 107301
2010-01-01 112428
2010-04-01 119799
2010-07-01 127983
2010-10-01 121754
2011-01-01 116923
2011-04-01 119335
2011-07-01 109018
2011-10-01 111725
2012-01-01 108010
2012-04-01 107178
2012-07-01 103725
2012-10-01 106230
2013-01-01 117255
2013-04-01 114853
2013-07-01 134858
2013-10-01 132862
2014-01-01 132358
2014-04-01 136927
2014-07-01 128853
2014-10-01 117310
2015-01-01 106601
2015-04-01 105405
2015-07-01 91628
2015-10-01 109709
2016-01-01 130759
2016-04-01 132777
2016-07-01 135586
2016-10-01 120216
2017-01-01 106091
2017-04-01 107132
2017-07-01 95580
2017-10-01 90417
2018-01-01 99958
2018-04-01 99759