Quarterly Millions of US Dollars
1997-10-01 5048125
1998-01-01 5073408
1998-04-01 4890107
1998-07-01 5162979
1998-10-01 5956269
1999-01-01 5877783
1999-04-01 5915113
1999-07-01 6833795
1999-10-01 7175347
2000-01-01 7144794
2000-04-01 7058015
2000-07-01 6817070
2000-10-01 6571769
2001-01-01 6260539
2001-04-01 6490857
2001-07-01 6756333
2001-10-01 6205935
2002-01-01 6253989
2002-04-01 7188388
2002-07-01 7061189
2002-10-01 7334522
2003-01-01 7597588
2003-04-01 7631187
2003-07-01 8190439
2003-10-01 8611405
2004-01-01 9156089
2004-04-01 8887446
2004-07-01 8862564
2004-10-01 9755802
2005-01-01 9668655
2005-04-01 9512294
2005-07-01 9251641
2005-10-01 9024516
2006-01-01 8994949
2006-04-01 9156693
2006-07-01 9007475
2006-10-01 8942402
2007-01-01 9036722
2007-04-01 8626561
2007-07-01 9274563
2007-10-01 9686775
2008-01-01 11047046
2008-04-01 10288664
2008-07-01 10302340
2008-10-01 12149057
2009-01-01 11028548
2009-04-01 11497984
2009-07-01 12377427
2009-10-01 12102169
2010-01-01 12010873
2010-04-01 13101122
2010-07-01 14062603
2010-10-01 14422695
2011-01-01 14071086
2011-04-01 14811693
2011-07-01 15732374
2011-10-01 15634414
2012-01-01 14721374
2012-04-01 15473558
2012-07-01 15955231
2012-10-01 14538619
2013-01-01 13313960
2013-04-01 12710659
2013-07-01 12976682
2013-10-01 12146985
2014-01-01 12394580
2014-04-01 12784139
2014-07-01 11822644
2014-10-01 10943999
2015-01-01 11032742
2015-04-01 10800613
2015-07-01 11012154
2015-10-01 10986747
2016-01-01 12225257
2016-04-01 13622642
2016-07-01 13677773
2016-10-01 11730771
2017-01-01 12265851
2017-04-01 12266305
2017-07-01 12223916
2017-10-01 12298430
2018-01-01 13044885