Quarter	US dollars
1999-09-30	13949
1999-12-31	1444
2000-03-31	13684
2000-06-30	13974
2000-09-30	13551
2000-12-31	13632
2001-03-31	13107
2001-06-30	13220
2001-09-30	13928
2001-12-31	13489
2002-03-31	13676
2002-06-30	14758
2002-09-30	15036
2002-12-31	15676
2003-03-31	15873
2003-06-30	16404
2003-09-30	17068
2003-12-31	17952
2004-03-31	18176
2004-06-30	17582
2004-09-30	18019
2004-12-31	19108
2005-03-31	18609
2005-06-30	18624
2005-09-30	18715
2005-12-31	18879
2006-03-31	19636
2006-06-30	20365
2006-09-30	20453
2006-12-31	20916
2007-03-31	21405
2007-06-30	21161
2007-09-30	23077
2007-12-31	24667
2008-03-31	27100
2008-06-30	26345
2008-09-30	25723
2008-12-31	28022
2009-03-31	28269
2009-06-30	29766
2009-09-30	32025
2009-12-31	32925
2010-03-31	33068