Quarter	Millions of US Dollars
1994-10-01	5840
1995-01-01	5840
1995-04-01	5840
1995-07-01	6090
1995-10-01	6090
1996-01-01	6090
1996-04-01	6090
1996-07-01	6253
1996-10-01	6251
1997-01-01	6238
1997-04-01	6233
1997-07-01	6631
1997-10-01	6629
1998-01-01	6625
1998-04-01	6628
1998-07-01	6639
1998-10-01	6144
1999-01-01	6129
1999-04-01	6123
1999-07-01	6128
1999-10-01	6118
2000-01-01	6683
2000-04-01	6683
2000-07-01	6373
2000-10-01	5471
2001-01-01	6098
2001-04-01	5755
2001-07-01	5737
2001-10-01	5913
2002-01-01	6528
2002-04-01	6826
2002-07-01	8174
2002-10-01	7643
2003-01-01	9362
2003-04-01	9398
2003-07-01	11252
2003-10-01	12902
2004-01-01	15686
2004-04-01	16924
2004-07-01	17138
2004-10-01	18352
2005-01-01	22238
2005-04-01	27456
2005-07-01	26430
2005-10-01	27479
2006-01-01	31599
2006-04-01	32892
2006-07-01	32094
2006-10-01	33779
2007-01-01	36058
2007-04-01	37545
2007-07-01	38854
2007-10-01	40484
2008-01-01	42596
2008-04-01	46302
2008-07-01	42618
2008-10-01	42344
2009-01-01	42453
2009-04-01	46524
2009-07-01	51290
2009-10-01	52416
2010-01-01	55286
2010-04-01	51585
2010-07-01	58987
2010-10-01	57410
2011-01-01	60491
2011-04-01	63881
2011-07-01	60967
2011-10-01	61042
2012-01-01	63942
2012-04-01	62830
2012-07-01	64710
2012-10-01	70027
2013-01-01	64630
2013-04-01	65397
2013-07-01	67048
2013-10-01	70317
2014-01-01	70081
2014-04-01	67337
2014-07-01	63019
2014-10-01	60997
2015-01-01	56738
2015-04-01	58353
2015-07-01	59024
2015-10-01	58008
2016-01-01	59110
2016-04-01	61003
2016-07-01	60222
2016-10-01	59576
2017-01-01	59527
2017-04-01	61773
2017-07-01	63155
2017-10-01	67285
2018-01-01	70024
2018-04-01	63752