Quarter Millions of US Dollars 2009-01-01 49191.257000000005 2009-04-01 49292.664000000004 2009-07-01 51013.441000000000 2009-10-01 53302.871000000000 2010-01-01 55924.038000000000 2010-04-01 55811.252000000000 2010-07-01 61308.447000000000 2010-10-01 62090.912000000004 2011-01-01 61333.464000000010 2011-04-01 63465.817000000000 2011-07-01 63393.348000000000 2011-10-01 65300.677000000000 2012-01-01 70243.029000000010 2012-04-01 72319.901000000000 2012-07-01 76256.050000000000 2012-10-01 84516.591999999990 2013-01-01 83341.307000000000 2013-04-01 81133.065999999990 2013-07-01 84501.821000000000 2013-10-01 83994.483000000010 2014-01-01 81793.495000000000 2014-04-01 85429.978000000000 2014-07-01 83566.895000000000 2014-10-01 85198.555000000000 2015-01-01 86285.541000000000 2015-04-01 85095.942000000000 2015-07-01 83092.289000000000 2015-10-01 82909.002000000010 2016-01-01 83631.640000000000 2016-04-01 81348.578000000000 2016-07-01 80664.494000000000 2016-10-01 79327.766000000000 2017-01-01 79035.583000000000 2017-04-01 82959.329000000000 2017-07-01 82327.929000000000 2017-10-01 89058.612000000000 2018-01-01 85455.487000000000