Quarterly Millions of US Dollars
1988-04-01 16163
1988-07-01 14956
1988-10-01 14490
1989-01-01 13573
1989-04-01 12145
1989-07-01 12754
1989-10-01 13584
1990-01-01 13164
1990-04-01 13612
1990-07-01 14070
1990-10-01 13150
1991-01-01 13729
1991-04-01 13614
1991-07-01 15160
1991-10-01 15317
1992-01-01 14939
1992-04-01 14931
1992-07-01 14067
1992-10-01 13120
1993-01-01 13238
1993-04-01 12158
1993-07-01 8171
1993-10-01 7787
1994-01-01 7184
1994-04-01 6576
1994-07-01 6490
1994-10-01 6713
1995-01-01 6337
1995-04-01 6107
1995-07-01 6029
1995-10-01 5127
1996-01-01 5673
1996-04-01 5903
1996-07-01 5893
1996-10-01 5921
1997-01-01 6295
1997-04-01 6375
1997-07-01 6682
1997-10-01 6231
1998-01-01 6649
1998-04-01 6333
1998-07-01 6310
1998-10-01 6529
1999-01-01 7751
1999-04-01 8739
1999-07-01 9159
1999-10-01 10242
2000-01-01 11032
2000-04-01 11806
2000-07-01 11439
2000-10-01 13721
2001-01-01 12160
2001-04-01 13595
2001-07-01 14185
2001-10-01 16111
2002-01-01 17158
2002-04-01 19103
2002-07-01 18277
2002-10-01 20439
2003-01-01 22881
2003-04-01 25526
2003-07-01 25450
2003-10-01 28475
2004-01-01 29203
2004-04-01 29038
2004-07-01 30724
2004-10-01 33144
2005-01-01 34135
2005-04-01 33087
2005-07-01 32320
2005-10-01 33629
2006-01-01 33317
2006-04-01 34998
2006-07-01 36597
2006-10-01 40832
2007-01-01 40406
2007-04-01 42122
2007-07-01 42428
2007-10-01 40131
2008-01-01 41354
2008-04-01 41950
2008-07-01 34786
2008-10-01 28703
2009-01-01 28746
2009-04-01 33594
2009-07-01 36517
2009-10-01 37069
2010-01-01 37041
2010-04-01 34626
2010-07-01 40575
2010-10-01 40780
2011-01-01 42936
2011-04-01 43916
2011-07-01 39642
2011-10-01 41115
2012-01-01 45417
2012-04-01 45925
2012-07-01 47322
2012-10-01 49536
2013-01-01 50365
2013-04-01 44327
2013-07-01 45910
2013-10-01 45437
2014-01-01 47628
2014-04-01 49104
2014-07-01 43902
2014-10-01 42288
2015-01-01 41030
2015-04-01 40697
2015-07-01 36968
2015-10-01 36777
2016-01-01 39077
2016-04-01 37393
2016-07-01 37046
2016-10-01 33570
2017-01-01 35821
2017-04-01 37409
2017-07-01 40218
2017-10-01 39263
2018-01-01 39105