Year Dollars 1997-01-01 248139 2006-01-01 482090 2007-01-01 283345 2008-01-01 1296319 2009-01-01 895870 2010-01-01 1149764 2011-01-01 2184731 2012-01-01 6165492 2013-01-01 5671609 2014-01-01 3678307