Quarterly Millions of US Dollars
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 10
1977-01-01 10
1977-04-01 10
1977-07-01 10
1977-10-01 0
1978-01-01 16
1978-04-01 59
1978-07-01 71
1978-10-01 267
1979-01-01 557
1979-04-01 758
1979-07-01 999
1979-10-01 1134
1980-01-01 1053
1980-04-01 1474
1980-07-01 1396
1980-10-01 1232
1981-01-01 1407
1981-04-01 1137
1981-07-01 1245
1981-10-01 1308
1982-01-01 1319
1982-04-01 1306
1982-07-01 1266
1982-10-01 1523
1983-01-01 1679
1983-04-01 2523
1983-07-01 2723
1983-10-01 2698
1984-01-01 2755
1984-04-01 2071
1984-07-01 2260
1984-10-01 2908
1985-01-01 2983
1985-04-01 3171
1985-07-01 4003
1985-10-01 3913
1986-01-01 4877
1986-04-01 5315
1986-07-01 5611
1986-10-01 6495
1987-01-01 7622
1987-04-01 8738
1987-07-01 8956
1987-10-01 11013
1988-01-01 11023
1988-04-01 10319
1988-07-01 12391
1988-10-01 13584
1989-01-01 13740
1989-04-01 14422
1989-07-01 14761
1989-10-01 17240
1990-01-01 18760
1990-04-01 22663
1990-07-01 26654
1990-10-01 29183
1991-01-01 33650
1991-04-01 37856
1991-07-01 52274
1991-10-01 57732
1992-01-01 73183
1992-04-01 93163
1992-07-01 102765
1992-10-01 106955
1993-01-01 94705
1993-04-01 75993
1993-07-01 77110
1993-10-01 69823
1994-01-01 67013
1994-04-01 67417
1994-07-01 76621
1994-10-01 72496
1995-01-01 79713
1995-04-01 82852
1995-07-01 70145
1995-10-01 74413
1996-01-01 72469
1996-04-01 76041
1996-07-01 73718
1996-10-01 87213
1997-01-01 89177
1997-04-01 90740
1997-07-01 82556
1997-10-01 68973
1998-01-01 54802
1998-04-01 44801
1998-07-01 45852
1998-10-01 58189
1999-01-01 61871
1999-04-01 64109
1999-07-01 77999
1999-10-01 75875
2000-01-01 65819
2000-04-01 64437
2000-07-01 57419
2000-10-01 57462
2001-01-01 54229
2001-04-01 53332
2001-07-01 54533
2001-10-01 51646
2002-01-01 51579
2002-04-01 54972
2002-07-01 53018
2002-10-01 51833
2003-01-01 49951
2003-04-01 50251
2003-07-01 49543
2003-10-01 47665
2004-01-01 47205
2004-04-01 50609
2004-07-01 49182
2004-10-01 50578
2005-01-01 50892
2005-04-01 44481
2005-07-01 42725
2005-10-01 43814
2006-01-01 49375
2006-04-01 51421
2006-07-01 55097
2006-10-01 49593
2007-01-01 49312
2007-04-01 47491
2007-07-01 39446
2007-10-01 48032
2008-01-01 54126
2008-04-01 67169
2008-07-01 64131
2008-10-01 67110
2009-01-01 66736
2009-04-01 74502
2009-07-01 75208
2009-10-01 67849
2010-01-01 65977
2010-04-01 61508
2010-07-01 73614
2010-10-01 78494
2011-01-01 85573
2011-04-01 74727
2011-07-01 75297
2011-10-01 74425
2012-01-01 83326
2012-04-01 82163
2012-07-01 86127
2012-10-01 82795
2013-01-01 81334
2013-04-01 87297
2013-07-01 87133
2013-10-01 93609
2014-01-01 90566
2014-04-01 96898
2014-07-01 101742
2014-10-01 97294
2015-01-01 88139
2015-04-01 92727
2015-07-01 95301
2015-10-01 100947
2016-01-01 116425
2016-04-01 111680
2016-07-01 106826
2016-10-01 104172
2017-01-01 107128
2017-04-01 112082
2017-07-01 117590
2017-10-01 120509
2018-01-01 124388
2018-04-01 125110