Quarter	Millions of US Dollars
2009-10-01	121031
2010-01-01	125845
2010-04-01	115625
2010-07-01	138338
2010-10-01	129694
2011-01-01	130394
2011-04-01	130313
2011-07-01	121768
2011-10-01	110958
2012-01-01	107648
2012-04-01	106191
2012-07-01	117484
2012-10-01	119080
2013-01-01	157793
2013-04-01	155471
2013-07-01	157513
2013-10-01	153857
2014-01-01	157244
2014-04-01	155393
2014-07-01	143725
2014-10-01	144978
2015-01-01	137917
2015-04-01	143748
2015-07-01	143196
2015-10-01	137432
2016-01-01	148343
2016-04-01	137349
2016-07-01	139328
2016-10-01	129873
2017-01-01	139686
2017-04-01	153093
2017-07-01	158258
2017-10-01	156495
2018-01-01	170029