Month Millions of Dollars 1997-01-01 1899.2714789999995 1997-02-01 1528.3424310000000 1997-03-01 1697.0485759999997 1997-04-01 1741.4705900000004 1997-05-01 1733.2686970000000 1997-06-01 1620.5486570000000 1997-07-01 1664.4515930000000 1997-08-01 1660.8084230000000 1997-09-01 1687.1229840000000 1997-10-01 1812.1357640000000 1997-11-01 1490.0616280000000 1997-12-01 1389.7446840000000 1998-01-01 1574.0993720000000 1998-02-01 1338.0993070000000 1998-03-01 1420.8110900000000 1998-04-01 1555.4140630000000 1998-05-01 1409.3449310000000 1998-06-01 1346.0280539999999 1998-07-01 1328.2303810000000 1998-08-01 1335.4337159999998 1998-09-01 1173.3766629999998 1998-10-01 1144.9518550000000 1998-11-01 1162.9492280000000 1998-12-01 1035.9108170000000 1999-01-01 1213.6098300000000 1999-02-01 993.2548550000000 1999-03-01 1231.7026299999998 1999-04-01 1337.9071830000000 1999-05-01 1382.5594090000000 1999-06-01 1360.2779020000000 1999-07-01 1293.4358489999997 1999-08-01 1655.4028210000004 1999-09-01 1665.6787939999997 1999-10-01 1638.0448279999996 1999-11-01 1572.8787930000000 1999-12-01 1645.3485120000005 2000-01-01 1593.4892170000005 2000-02-01 1896.7514870000005 2000-03-01 2378.9421790000000 2000-04-01 2293.3954450000006 2000-05-01 2080.8437100000006 2000-06-01 2659.6999479999995 2000-07-01 2617.7414790000000 2000-08-01 2480.1586600000000 2000-09-01 2363.1368540000000 2000-10-01 2554.9571590000000 2000-11-01 2406.9797469999994 2000-12-01 2314.8287060000000 2001-01-01 2360.6747799999994 2001-02-01 2039.4658599999996 2001-03-01 2553.0928650000005 2001-04-01 2445.4552190000000 2001-05-01 2455.0379390000000 2001-06-01 2228.7282120000004 2001-07-01 2224.1894530000000 2001-08-01 2019.8537570000000 2001-09-01 2053.2041039999995 2001-10-01 1992.1723920000004 2001-11-01 1516.0236200000000 2001-12-01 1543.4408389999996 2002-01-01 1579.7485070000005 2002-02-01 1208.6254210000000 2002-03-01 1589.2056480000000 2002-04-01 1883.7934600000000 2002-05-01 1900.9732920000000 2002-06-01 2366.5249230000000 2002-07-01 1771.9704560000000 2002-08-01 2029.8003289999997 2002-09-01 1893.9147530000000 2002-10-01 2037.1816489999997 2002-11-01 1932.5960569999995 2002-12-01 1905.8873160000000 2003-01-01 2476.7654959999995 2003-02-01 2101.1721460000003 2003-03-01 3039.1132220000000 2003-04-01 2447.3204449999994 2003-05-01 2568.5096759999997 2003-06-01 2579.4128380000000 2003-07-01 3041.8175570000000 2003-08-01 3012.5067800000006 2003-09-01 2759.4237160000000 2003-10-01 2910.0531270000006 2003-11-01 2244.6526130000000 2003-12-01 2840.5466890000000 2004-01-01 2671.8389559999996 2004-02-01 3080.5890000000000 2004-03-01 3742.0182189999990 2004-04-01 3527.9457550000000 2004-05-01 3771.4669269999990 2004-06-01 3746.1191759999992 2004-07-01 3804.6793080000007 2004-08-01 4343.2660380000010 2004-09-01 3836.0931300000000 2004-10-01 4372.7005550000000 2004-11-01 4411.8944050000010 2004-12-01 4327.7807100000000 2005-01-01 4167.7908440000000 2005-02-01 4245.9448840000005 2005-03-01 4811.4939460000000 2005-04-01 5378.7184240000040 2005-05-01 4739.3399030000000 2005-06-01 4746.7593820000000 2005-07-01 5489.9288389999965 2005-08-01 6508.6471770000000 2005-09-01 6222.5571819999990 2005-10-01 6612.6281900000000 2005-11-01 6376.7622560000020 2005-12-01 5911.1990019999985 2006-01-01 6025.3312480000000 2006-02-01 5886.7116039999980 2006-03-01 5776.0639319999980 2006-04-01 6007.6688869999980 2006-05-01 6960.3313730000000 2006-06-01 7811.2055490000000 2006-07-01 8144.1974019999980 2006-08-01 7976.7680659999990 2006-09-01 7510.7179499999980 2006-10-01 6452.0335279999980 2006-11-01 5347.6494460000030 2006-12-01 6519.2508970000020 2007-01-01 6770.6530730000000 2007-02-01 5551.0191250000010 2007-03-01 7458.6065450000000 2007-04-01 7239.9267940000000 2007-05-01 7978.2839340000020 2007-06-01 7576.2082139999980 2007-07-01 7871.2299990000020 2007-08-01 8546.0085950000000 2007-09-01 7640.5042279999980 2007-10-01 7582.6990099999980 2007-11-01 8524.9036950000000 2007-12-01 9273.0108050000000 2008-01-01 10095.7156269999980 2008-02-01 8057.7066080000010 2008-03-01 9169.2484600000000 2008-04-01 10599.7235820000000 2008-05-01 10450.6309040000010 2008-06-01 12347.6583989999980 2008-07-01 12546.6104740000030 2008-08-01 11706.1436470000030 2008-09-01 8323.4639309999980 2008-10-01 9258.3329160000010 2008-11-01 5555.5879540000000 2008-12-01 5384.7313039999990 2009-01-01 4027.2517079999993 2009-02-01 3470.7799970000000 2009-03-01 4324.9019450000000 2009-04-01 4289.6849720000010 2009-05-01 3969.0709220000010 2009-06-01 5048.6715980000010 2009-07-01 5613.9703650000000 2009-08-01 5552.2857290000010 2009-09-01 6726.6192399999980 2009-10-01 5916.9438410000040 2009-11-01 6309.3674369999980 2009-12-01 7154.0659200000000 2010-01-01 6631.5885530000000 2010-02-01 5711.2247040000000 2010-03-01 7908.5602819999990 2010-04-01 7613.3293089999990 2010-05-01 6991.4177260000015 2010-06-01 6922.2210940000010 2010-07-01 7403.6480430000020 2010-08-01 7970.6247600000000 2010-09-01 7886.9062290000020 2010-10-01 6486.7737100000040 2010-11-01 6092.7927950000010 2010-12-01 7389.0108539999980 2011-01-01 8273.8716450000000 2011-02-01 7085.7281690000000 2011-03-01 8178.3651680000010 2011-04-01 7843.8926229999990 2011-05-01 8354.3902769999990 2011-06-01 8612.4365099999980 2011-07-01 8604.0272960000020 2011-08-01 8458.5110680000020 2011-09-01 7357.2021830000000 2011-10-01 6642.8842470000020 2011-11-01 7200.5386739999985 2011-12-01 6397.1453949999990 2012-01-01 6331.8121580000020 2012-02-01 4520.4795010000000 2012-03-01 6101.3813719999990 2012-04-01 6132.8681239999990 2012-05-01 6465.4807360000040 2012-06-01 6307.5180700000020 2012-07-01 4953.1536330000010 2012-08-01 5556.6259430000010 2012-09-01 5652.0871340000020 2012-10-01 6185.5495589999970 2012-11-01 4689.2378300000020 2012-12-01 3920.3484480000010 2013-01-01 5141.5667109999995 2013-02-01 3213.6914909999996 2013-03-01 4412.6891979999990 2013-04-01 4451.8797830000000 2013-05-01 5199.3877449999990 2013-06-01 5071.9093680000020 2013-07-01 4453.0159190000000 2013-08-01 4785.8524920000000 2013-09-01 4285.7028580000020 2013-10-01 3647.3642680000007 2013-11-01 2738.4717740000000 2013-12-01 2658.2101179999995 2014-01-01 2720.5264460000000 2014-02-01 2671.4332980000004 2014-03-01 3077.7395700000006 2014-04-01 3128.3136929999990 2014-05-01 3161.1905580000007 2014-06-01 2737.7053420000000 2014-07-01 3017.7715990000000 2014-08-01 3040.8397190000005 2014-09-01 2770.2335950000000 2014-10-01 2833.3057320000000 2014-11-01 2456.2529850000014 2014-12-01 2993.2509280000004 2015-01-01 2150.9166780000000 2015-02-01 1739.1163849999996 2015-03-01 2132.5222410000000 2015-04-01 2277.0547380000000 2015-05-01 2061.8666920000000 2015-06-01 2128.2900150000000 2015-07-01 2447.3620439999995 2015-08-01 2011.6779560000000 2015-09-01 2405.0358399999996 2015-10-01 2046.7156810000001 2015-11-01 1989.0764189999998 2015-12-01 1998.5716060000000 2016-01-01 1890.4118350000003 2016-02-01 1783.3799450000000 2016-03-01 2079.2935910000000 2016-04-01 2337.7240839999990 2016-05-01 2146.6643370000006 2016-06-01 2337.9762400000004 2016-07-01 2310.5993689999996 2016-08-01 2260.2339289999995 2016-09-01 2142.3482530000000 2016-10-01 2235.8821250000010 2016-11-01 2555.9074940000005 2016-12-01 2456.5145149999994 2017-01-01 2773.0660760000000 2017-02-01 2181.2592290000002 2017-03-01 2544.6616950000007 2017-04-01 2565.6017460000007 2017-05-01 2796.1041609999997 2017-06-01 2752.7562830000006 2017-07-01 2640.8951779999990 2017-08-01 3161.9412379999994 2017-09-01 2676.3182210000004 2017-10-01 3388.6540520000003 2017-11-01 2899.4214020000000 2017-12-01 3030.5693940000000 2018-01-01 3285.7183480000000 2018-02-01 2580.0896460000000 2018-03-01 2916.2150530000000 2018-04-01 3432.5710800000000 2018-05-01 3019.9737270000000 2018-06-01 3045.9406560000000 2018-07-01 3332.0286990000000 2018-08-01 3185.2337170000000 2018-09-01 2464.3539040000000 2018-10-01 3159.8057750000000