Quarterly Millions of US Dollars
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 0
1978-01-01 0
1978-04-01 0
1978-07-01 0
1978-10-01 0
1979-01-01 0
1979-04-01 0
1979-07-01 11
1979-10-01 11
1980-01-01 9
1980-04-01 10
1980-07-01 0
1980-10-01 60
1981-01-01 67
1981-04-01 65
1981-07-01 66
1981-10-01 27
1982-01-01 39
1982-04-01 138
1982-07-01 137
1982-10-01 254
1983-01-01 380
1983-04-01 274
1983-07-01 296
1983-10-01 205
1984-01-01 64
1984-04-01 95
1984-07-01 66
1984-10-01 345
1985-01-01 497
1985-04-01 560
1985-07-01 793
1985-10-01 810
1986-01-01 675
1986-04-01 805
1986-07-01 860
1986-10-01 466
1987-01-01 593
1987-04-01 446
1987-07-01 524
1987-10-01 652
1988-01-01 679
1988-04-01 993
1988-07-01 637
1988-10-01 636
1989-01-01 473
1989-04-01 269
1989-07-01 270
1989-10-01 359
1990-01-01 602
1990-04-01 553
1990-07-01 585
1990-10-01 586
1991-01-01 508
1991-04-01 296
1991-07-01 322
1991-10-01 366
1992-01-01 149
1992-04-01 737
1992-07-01 684
1992-10-01 899
1993-01-01 966
1993-04-01 768
1993-07-01 751
1993-10-01 806
1994-01-01 759
1994-04-01 759
1994-07-01 786
1994-10-01 1160
1995-01-01 2037
1995-04-01 2612
1995-07-01 2569
1995-10-01 1839
1996-01-01 1940
1996-04-01 2869
1996-07-01 3518
1996-10-01 7038
1997-01-01 7552
1997-04-01 7263
1997-07-01 6354
1997-10-01 3724
1998-01-01 3206
1998-04-01 3557
1998-07-01 3499
1998-10-01 1409
1999-01-01 2297
1999-04-01 2378
1999-07-01 3328
1999-10-01 4531
2000-01-01 3988
2000-04-01 4063
2000-07-01 3367
2000-10-01 2450
2001-01-01 1753
2001-04-01 2711
2001-07-01 3062
2001-10-01 2613
2002-01-01 2233
2002-04-01 3235
2002-07-01 3197
2002-10-01 4510
2003-01-01 4405
2003-04-01 3355
2003-07-01 4501
2003-10-01 3139
2004-01-01 2942
2004-04-01 2904
2004-07-01 1124
2004-10-01 1234
2005-01-01 2156
2005-04-01 1046
2005-07-01 8873
2005-10-01 8761
2006-01-01 10337
2006-04-01 11409
2006-07-01 9460
2006-10-01 10133
2007-01-01 7782
2007-04-01 7358
2007-07-01 7726
2007-10-01 7900
2008-01-01 8468
2008-04-01 13117
2008-07-01 4889
2008-10-01 4463
2009-01-01 4692
2009-04-01 415
2009-07-01 403
2009-10-01 406
2010-01-01 0
2010-04-01 3000
2010-07-01 3200
2010-10-01 3200
2011-01-01 3563
2011-04-01 571
2011-07-01 1342
2011-10-01 1334
2012-01-01 1000
2012-04-01 2000
2012-07-01 1000
2012-10-01 1000
2013-01-01 1320
2013-04-01 327
2013-07-01 338
2013-10-01 445
2014-01-01 1099
2014-04-01 1122
2014-07-01 1304
2014-10-01 5034
2015-01-01 9619
2015-04-01 9779
2015-07-01 9532
2015-10-01 5598
2016-01-01 1929
2016-04-01 2665
2016-07-01 2792
2016-10-01 2979
2017-01-01 1905
2017-04-01 4095
2017-07-01 3962
2017-10-01 6904
2018-01-01 7776
2018-04-01 8516