Quarter	US dollars
1999-09-30	9211
1999-12-31	7682
2000-03-31	9321
2000-06-30	10390
2000-09-30	12339
2000-12-31	14811
2001-03-31	17292
2001-06-30	19552
2001-09-30	22158
2001-12-31	24118
2002-03-31	25985
2002-06-30	30465
2002-09-30	30851
2002-12-31	30069
2003-03-31	28476
2003-06-30	27743
2003-09-30	25956
2003-12-31	28550
2004-03-31	29237
2004-06-30	34118
2004-09-30	33776