Quarter	Millions of US Dollars
1995-10-01	1283
1996-01-01	1342
1996-04-01	1346
1996-07-01	1344
1996-10-01	1450
1997-01-01	1716
1997-04-01	1995
1997-07-01	1982
1997-10-01	1605
1998-01-01	1327
1998-04-01	1302
1998-07-01	1042
1998-10-01	904
1999-01-01	1282
1999-04-01	1670
1999-07-01	1624
1999-10-01	1588
2000-01-01	1908
2000-04-01	2088
2000-07-01	2348
2000-10-01	2212
2001-01-01	2434
2001-04-01	2527
2001-07-01	3043
2001-10-01	2227
2002-01-01	3121
2002-04-01	4405
2002-07-01	4369
2002-10-01	3325
2003-01-01	2602
2003-04-01	2408
2003-07-01	2500
2003-10-01	2357
2004-01-01	2273
2004-04-01	2170
2004-07-01	2131
2004-10-01	2388
2005-01-01	2420
2005-04-01	3533
2005-07-01	4539
2005-10-01	4011
2006-01-01	4306
2006-04-01	4690
2006-07-01	5001
2006-10-01	3364
2007-01-01	4022
2007-04-01	4347
2007-07-01	4568
2007-10-01	4068
2008-01-01	4899
2008-04-01	5935
2008-07-01	5132
2008-10-01	4090
2009-01-01	4305
2009-04-01	4585
2009-07-01	5556
2009-10-01	4618
2010-01-01	3956
2010-04-01	4354
2010-07-01	4134
2010-10-01	4118
2011-01-01	4628
2011-04-01	5241
2011-07-01	4426
2011-10-01	4561
2012-01-01	4314
2012-04-01	4484
2012-07-01	4917
2012-10-01	4785
2013-01-01	4694
2013-04-01	4356
2013-07-01	4268
2013-10-01	3856
2014-01-01	3911
2014-04-01	4580
2014-07-01	3761
2014-10-01	2501
2015-01-01	2467
2015-04-01	2909
2015-07-01	2388
2015-10-01	2171
2016-01-01	2704
2016-04-01	2786
2016-07-01	2050
2016-10-01	2143
2017-01-01	1928
2017-04-01	2667
2017-07-01	3073
2017-10-01	2506
2018-01-01	2623