Quarter	Billions of US Dollars
1980-10-01	130.028
1981-01-01	124.913
1981-04-01	116.801
1981-07-01	120.512
1981-10-01	127.147
1982-01-01	118.911
1982-04-01	118.789
1982-07-01	119.675
1982-10-01	113.831
1983-01-01	107.637
1983-04-01	104.618
1983-07-01	102.046
1983-10-01	103.136
1984-01-01	109.662
1984-04-01	107.199
1984-07-01	100.771
1984-10-01	104.036
1985-01-01	103.354
1985-04-01	103.928
1985-07-01	110.676
1985-10-01	121.684
1986-01-01	126.005
1986-04-01	133.851
1986-07-01	140.413
1986-10-01	147.094
1987-01-01	150.367
1987-04-01	152.349
1987-07-01	157.590
1987-10-01	185.542
1988-01-01	180.692
1988-04-01	169.260
1988-07-01	170.197
1988-10-01	197.845
1989-01-01	193.413
1989-04-01	194.915
1989-07-01	207.271
1989-10-01	234.140
1990-01-01	242.028
1990-04-01	267.241
1990-07-01	289.806
1990-10-01	304.543
1991-01-01	285.821
1991-04-01	275.598
1991-07-01	306.405
1991-10-01	341.635
1992-01-01	318.054
1992-04-01	349.999
1992-07-01	350.239
1992-10-01	313.727
1993-01-01	309.581
1993-04-01	282.192
1993-07-01	277.374
1993-10-01	262.440
1994-01-01	270.037
1994-04-01	280.385
1994-07-01	287.652
1994-10-01	281.182
1995-01-01	288.724
1995-04-01	303.639
1995-07-01	298.850
1995-10-01	307.452
1996-01-01	295.196
1996-04-01	288.820
1996-07-01	291.569
1996-10-01	294.928
1997-01-01	275.901
1997-04-01	269.468
1997-07-01	273.621
1997-10-01	276.117
1998-01-01	272.131
1998-04-01	291.299
1998-07-01	319.608
1998-10-01	331.309
1999-01-01	326.052
1999-04-01	348.279
1999-07-01	371.499
1999-10-01	365.654
2000-01-01	372.974
2000-04-01	401.274
2000-07-01	397.509
2000-10-01	438.955
2001-01-01	428.849
2001-04-01	432.286
2001-07-01	493.599
2001-10-01	495.359
2002-01-01	506.813
2002-04-01	588.646
2002-07-01	591.885
2002-10-01	653.271
2003-01-01	690.306
2003-04-01	736.755
2003-07-01	766.444
2003-10-01	868.924
2004-01-01	863.562
2004-04-01	891.862
2004-07-01	931.810
2004-10-01	1064.109
2005-01-01	1051.009
2005-04-01	1029.677
2005-07-01	1056.500
2005-10-01	1091.240
2006-01-01	1196.283
2006-04-01	1320.009
2006-07-01	1383.381
2006-10-01	1526.106
2007-01-01	1601.534
2007-04-01	1714.501
2007-07-01	1853.071
2007-10-01	1979.251
2008-01-01	2142.503
2008-04-01	2190.511
2008-07-01	2020.273
2008-10-01	1979.979
2009-01-01	1908.766
2009-04-01	2022.270
2009-07-01	2085.929
2009-10-01	2025.494
2010-01-01	1907.256
2010-04-01	1758.747
2010-07-01	1956.745
2010-10-01	1909.944
2011-01-01	2018.155
2011-04-01	2058.964
2011-07-01	1924.005
2011-10-01	1831.726
2012-01-01	1899.927
2012-04-01	1771.472
2012-07-01	1793.907
2012-10-01	1728.224
2013-01-01	1641.037
2013-04-01	1644.974
2013-07-01	1679.969
2013-10-01	1697.100
2014-01-01	1669.166
2014-04-01	1647.043
2014-07-01	1516.254
2014-10-01	1431.882
2015-01-01	1284.687
2015-04-01	1310.472
2015-07-01	1304.621
2015-10-01	1259.080
2016-01-01	1299.614
2016-04-01	1276.268
2016-07-01	1285.963
2016-10-01	1204.519
2017-01-01	1236.661
2017-04-01	1313.049
2017-07-01	1353.017
2017-10-01	1352.454
2018-01-01	1385.452
