Quarter	US Dollars, monthly level
2005-01-01	2010662554481.9001
2005-04-01	2147125188713.9302
2005-07-01	2146362329235.5600
2005-10-01	2271986141452.6900
2006-01-01	2283050574372.1200
2006-04-01	2469588125477.0400
2006-07-01	2497226758720.3900
2006-10-01	2606155536475.8604
2007-01-01	2587095051521.9200
2007-04-01	2761922534806.2803
2007-07-01	2846399620984.3500
2007-10-01	3127385922605.5800
2008-01-01	3179912626153.5100
2008-04-01	3492219843749.9600
2008-07-01	3479198559133.4100
2008-10-01	2820093860709.8900
2009-01-01	2204384360078.1104
2009-04-01	2314159228325.7100
2009-07-01	2560295304840.6700
2009-10-01	2799804548722.0600
2010-01-01	2743552497115.1597
2010-04-01	2932651473781.4900
2010-07-01	3031380165545.6300
2010-10-01	3278362186301.5903
2011-01-01	3369738609307.2700
2011-04-01	3663501003715.2000
2011-07-01	3681651126959.5700
2011-10-01	3631094398210.4300
2012-01-01	3547021372078.5103
2012-04-01	3572892052592.7400
2012-07-01	3515353929914.3800
2012-10-01	3630386791260.6704
2013-01-01	3508596369129.5600
2013-04-01	3576686346455.8200
2013-07-01	3602250635039.3300
2013-10-01	3705775622378.8003
2014-01-01	3595387792579.5100
2014-04-01	3694266073341.4000
2014-07-01	3686412883897.5700
2014-10-01	3574932895616.0000
2015-01-01	3127353928328.3700
2015-04-01	3207260771259.4297
2015-07-01	3187950578719.0703
2015-10-01	3174588860476.8900
2016-01-01	2898157081345.2500
2016-04-01	3103759129555.9400
2016-07-01	3119889819459.0903
2016-10-01	3206825512385.7900
2017-01-01	3215249080176.8400
2017-04-01	3356088160904.2397
2017-07-01	3476932802439.0903
2017-10-01	3672242105577.3496
2018-01-01	3722048379267.7803