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 19
1979-01-01 110
1979-04-01 111
1979-07-01 114
1979-10-01 110
1980-01-01 64
1980-04-01 127
1980-07-01 211
1980-10-01 188
1981-01-01 150
1981-04-01 356
1981-07-01 452
1981-10-01 561
1982-01-01 728
1982-04-01 528
1982-07-01 433
1982-10-01 538
1983-01-01 382
1983-04-01 357
1983-07-01 446
1983-10-01 302
1984-01-01 345
1984-04-01 296
1984-07-01 261
1984-10-01 541
1985-01-01 481
1985-04-01 619
1985-07-01 633
1985-10-01 510
1986-01-01 671
1986-04-01 633
1986-07-01 565
1986-10-01 622
1987-01-01 710
1987-04-01 899
1987-07-01 1431
1987-10-01 1577
1988-01-01 1490
1988-04-01 1230
1988-07-01 656
1988-10-01 397
1989-01-01 396
1989-04-01 364
1989-07-01 423
1989-10-01 504
1990-01-01 1359
1990-04-01 1310
1990-07-01 1260
1990-10-01 1292
1991-01-01 277
1991-04-01 676
1991-07-01 956
1991-10-01 924
1992-01-01 1157
1992-04-01 711
1992-07-01 939
1992-10-01 1007
1993-01-01 771
1993-04-01 844
1993-07-01 7198
1993-10-01 6794
1994-01-01 8508
1994-04-01 8664
1994-07-01 9486
1994-10-01 7751
1995-01-01 4549
1995-04-01 7729
1995-07-01 9916
1995-10-01 9890
1996-01-01 10199
1996-04-01 8269
1996-07-01 12158
1996-10-01 12703
1997-01-01 12460
1997-04-01 12581
1997-07-01 7796
1997-10-01 7112
1998-01-01 7271
1998-04-01 5476
1998-07-01 3972
1998-10-01 3846
1999-01-01 4203
1999-04-01 5896
1999-07-01 6469
1999-10-01 8175
2000-01-01 7998
2000-04-01 11975
2000-07-01 11282
2000-10-01 16331
2001-01-01 16996
2001-04-01 16601
2001-07-01 15843
2001-10-01 9384
2002-01-01 18290
2002-04-01 20671
2002-07-01 21870
2002-10-01 23992
2003-01-01 16187
2003-04-01 14606
2003-07-01 12009
2003-10-01 11902
2004-01-01 11174
2004-04-01 9153
2004-07-01 6970
2004-10-01 5865
2005-01-01 6891
2005-04-01 5631
2005-07-01 8211
2005-10-01 8267
2006-01-01 8381
2006-04-01 7891
2006-07-01 9289
2006-10-01 8982
2007-01-01 9763
2007-04-01 9595
2007-07-01 7403
2007-10-01 11964
2008-01-01 13907
2008-04-01 13038
2008-07-01 12881
2008-10-01 8488
2009-01-01 8784
2009-04-01 11668
2009-07-01 11017
2009-10-01 14209
2010-01-01 12225
2010-04-01 8095
2010-07-01 8795
2010-10-01 3441
2011-01-01 3494
2011-04-01 5153
2011-07-01 5118
2011-10-01 6090
2012-01-01 5036
2012-04-01 6118
2012-07-01 10599
2012-10-01 11653
2013-01-01 15707
2013-04-01 16625
2013-07-01 13952
2013-10-01 13227
2014-01-01 15313
2014-04-01 15542
2014-07-01 15055
2014-10-01 13705
2015-01-01 7145
2015-04-01 6637
2015-07-01 14890
2015-10-01 16881
2016-01-01 18664
2016-04-01 23597
2016-07-01 15625
2016-10-01 17953
2017-01-01 19862
2017-04-01 17011
2017-07-01 19789
2017-10-01 13685
2018-01-01 12253
2018-04-01 12360