Month	Millions of Dollars
2007-01-01	5.0391690000000010
2007-02-01	2.9000450000000000
2007-03-01	2.8760890000000000
2007-04-01	3.2298350000000000
2007-05-01	4.9711729999999990
2007-06-01	4.9321570000000000
2007-07-01	4.4628730000000000
2007-08-01	7.2436790000000020
2007-09-01	3.7721010000000006
2007-10-01	6.5107020000000020
2007-11-01	6.7711239999999990
2007-12-01	5.5635470000000000
2008-01-01	6.6409270000000000
2008-02-01	4.2495130000000000
2008-03-01	6.3104560000000000
2008-04-01	4.9816610000000000
2008-05-01	5.5122700000000000
2008-06-01	4.2502000000000000
2008-07-01	6.7982650000000000
2008-08-01	6.5084660000000000
2008-09-01	5.5128750000000000
2008-10-01	6.0033270000000000
2008-11-01	7.7167739999999980
2008-12-01	7.1616750000000000