Quarterly Millions of US Dollars
1968-01-01 0
1968-04-01 0
1968-07-01 0
1968-10-01 0
1969-01-01 0
1969-04-01 0
1969-07-01 0
1969-10-01 0
1970-01-01 0
1970-04-01 0
1970-07-01 0
1970-10-01 0
1971-01-01 0
1971-04-01 0
1971-07-01 0
1971-10-01 0
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 0
1976-10-01 0
1977-01-01 0
1977-04-01 0
1977-07-01 0
1977-10-01 25
1978-01-01 59
1978-04-01 117
1978-07-01 162
1978-10-01 150
1979-01-01 121
1979-04-01 90
1979-07-01 70
1979-10-01 90
1980-01-01 79
1980-04-01 118
1980-07-01 115
1980-10-01 65
1981-01-01 182
1981-04-01 329
1981-07-01 378
1981-10-01 442
1982-01-01 440
1982-04-01 384
1982-07-01 426
1982-10-01 463
1983-01-01 330
1983-04-01 170
1983-07-01 151
1983-10-01 113
1984-01-01 124
1984-04-01 175
1984-07-01 233
1984-10-01 420
1985-01-01 449
1985-04-01 519
1985-07-01 425
1985-10-01 362
1986-01-01 594
1986-04-01 973
1986-07-01 1082
1986-10-01 1521
1987-01-01 1487
1987-04-01 1273
1987-07-01 1516
1987-10-01 1639
1988-01-01 2039
1988-04-01 2080
1988-07-01 2352
1988-10-01 2398
1989-01-01 2476
1989-04-01 3169
1989-07-01 3546
1989-10-01 3781
1990-01-01 4122
1990-04-01 4596
1990-07-01 4997
1990-10-01 5607
1991-01-01 6681
1991-04-01 6843
1991-07-01 7431
1991-10-01 7209
1992-01-01 8289
1992-04-01 9730
1992-07-01 11357
1992-10-01 12077
1993-01-01 12867
1993-04-01 12067
1993-07-01 14823
1993-10-01 15664
1994-01-01 15929
1994-04-01 17560
1994-07-01 19281
1994-10-01 19947
1995-01-01 22157
1995-04-01 26018
1995-07-01 27466
1995-10-01 32285
1996-01-01 35908
1996-04-01 37443
1996-07-01 35455
1996-10-01 43867
1997-01-01 46289
1997-04-01 52972
1997-07-01 55848
1997-10-01 64981
1998-01-01 69049
1998-04-01 69130
1998-07-01 71665
1998-10-01 73920
1999-01-01 86354
1999-04-01 90238
1999-07-01 113349
1999-10-01 132469
2000-01-01 145844
2000-04-01 169819
2000-07-01 174861
2000-10-01 190961
2001-01-01 187905
2001-04-01 185687
2001-07-01 184689
2001-10-01 186215
2002-01-01 204374
2002-04-01 232029
2002-07-01 248454
2002-10-01 250768
2003-01-01 287877
2003-04-01 283200
2003-07-01 258641
2003-10-01 300375
2004-01-01 284377
2004-04-01 306265
2004-07-01 325114
2004-10-01 350814
2005-01-01 336332
2005-04-01 300416
2005-07-01 287089
2005-10-01 283817
2006-01-01 306976
2006-04-01 334814
2006-07-01 348318
2006-10-01 361407
2007-01-01 404359
2007-04-01 443884
2007-07-01 456377
2007-10-01 483220
2008-01-01 511366
2008-04-01 510073
2008-07-01 490027
2008-10-01 463752
2009-01-01 406092
2009-04-01 436193
2009-07-01 417963
2009-10-01 410666
2010-01-01 417305
2010-04-01 388258
2010-07-01 419828
2010-10-01 382444
2011-01-01 404045
2011-04-01 408554
2011-07-01 429087
2011-10-01 451309
2012-01-01 457052
2012-04-01 470509
2012-07-01 463842
2012-10-01 458292
2013-01-01 460836
2013-04-01 468115
2013-07-01 455406
2013-10-01 440889
2014-01-01 446296
2014-04-01 456572
2014-07-01 460382
2014-10-01 503406
2015-01-01 470245
2015-04-01 476687
2015-07-01 472130
2015-10-01 419539
2016-01-01 454100
2016-04-01 434107
2016-07-01 454196
2016-10-01 429757
2017-01-01 406026
2017-04-01 431569
2017-07-01 439494
2017-10-01 419459
2018-01-01 443124
2018-04-01 399309