Quarterly Millions of US Dollars
1988-04-01 18903
1988-07-01 17505
1988-10-01 17444
1989-01-01 16227
1989-04-01 14649
1989-07-01 15393
1989-10-01 16563
1990-01-01 16089
1990-04-01 16949
1990-07-01 18623
1990-10-01 17127
1991-01-01 17422
1991-04-01 16197
1991-07-01 17922
1991-10-01 17136
1992-01-01 17462
1992-04-01 17807
1992-07-01 17054
1992-10-01 15934
1993-01-01 16182
1993-04-01 14555
1993-07-01 11447
1993-10-01 11176
1994-01-01 10955
1994-04-01 10303
1994-07-01 10571
1994-10-01 11951
1995-01-01 10292
1995-04-01 10459
1995-07-01 10242
1995-10-01 10627
1996-01-01 12710
1996-04-01 14147
1996-07-01 14006
1996-10-01 14283
1997-01-01 13931
1997-04-01 13583
1997-07-01 13359
1997-10-01 13969
1998-01-01 14652
1998-04-01 12999
1998-07-01 12566
1998-10-01 12138
1999-01-01 14871
1999-04-01 16364
1999-07-01 16612
1999-10-01 17061
2000-01-01 18779
2000-04-01 19190
2000-07-01 17530
2000-10-01 20746
2001-01-01 17911
2001-04-01 18541
2001-07-01 18638
2001-10-01 20657
2002-01-01 22149
2002-04-01 25013
2002-07-01 23664
2002-10-01 25396
2003-01-01 28522
2003-04-01 32634
2003-07-01 29078
2003-10-01 33066
2004-01-01 33776
2004-04-01 32955
2004-07-01 35161
2004-10-01 37347
2005-01-01 38685
2005-04-01 37467
2005-07-01 36264
2005-10-01 39155
2006-01-01 39752
2006-04-01 41202
2006-07-01 41377
2006-10-01 45324
2007-01-01 46508
2007-04-01 48893
2007-07-01 46703
2007-10-01 43837
2008-01-01 44907
2008-04-01 45099
2008-07-01 37654
2008-10-01 30129
2009-01-01 30155
2009-04-01 34796
2009-07-01 37843
2009-10-01 38248
2010-01-01 38778
2010-04-01 35862
2010-07-01 41685
2010-10-01 42600
2011-01-01 44444
2011-04-01 45462
2011-07-01 41086
2011-10-01 42480
2012-01-01 46729
2012-04-01 47284
2012-07-01 49026
2012-10-01 51154
2013-01-01 52087
2013-04-01 45595
2013-07-01 47737
2013-10-01 46976
2014-01-01 49400
2014-04-01 50613
2014-07-01 45752
2014-10-01 43893
2015-01-01 42437
2015-04-01 43066
2015-07-01 39581
2015-10-01 39553
2016-01-01 42078
2016-04-01 40281
2016-07-01 40030
2016-10-01 36388
2017-01-01 38635
2017-04-01 40310
2017-07-01 43003
2017-10-01 42381
2018-01-01 42394