Quarter	US Dollars, monthly level
2006-01-01	37450000000.000000
2006-04-01	37764000000.000000
2006-07-01	37354000000.000000
2006-10-01	28658000000.000000
2007-01-01	26210000000.000000
2007-04-01	31716000000.000000
2007-07-01	36249000000.000000
2007-10-01	48783000000.000000
2008-01-01	54404000000.000000
2008-04-01	69706000000.000000
2008-07-01	60701000000.000000
2008-10-01	13535000000.000000
2009-01-01	13155000000.000000
2009-04-01	21736000000.000000
2009-07-01	27953000000.000000
2009-10-01	33918999999.999996
2010-01-01	33738000000.000000
2010-04-01	33841000000.000000
2010-07-01	33686999999.999996
2010-10-01	43009000000.000000
2011-01-01	52269000000.000000
2011-04-01	57855000000.000000
2011-07-01	59756000000.000000
2011-10-01	63268000000.000000
2012-01-01	66748999999.999990
2012-04-01	57885000000.000000
2012-07-01	52906000000.000000
2012-10-01	55146000000.000000
2013-01-01	48596000000.000000
2013-04-01	44920000000.000000
2013-07-01	56134000000.000000
2013-10-01	58067000000.000000
2014-01-01	53608666666.666700
2014-04-01	47381800000.000000
2014-07-01	43922600000.000000
2014-10-01	23710333333.333298
2015-01-01	9017800000.000000
2015-04-01	12879333333.333300
2015-07-01	6651733333.333340
2015-10-01	425733333.333336
2016-01-01	274666666.666664
2016-04-01	9122133333.333340
2016-07-01	15509480112.000000
2016-10-01	18993677029.333298
2017-01-01	21684415184.000000
2017-04-01	16804794304.000002
2017-07-01	19315991165.333300
2017-10-01	29420915074.666700
2018-01-01	32079716357.333298
2018-04-01	39911753970.666700