Quarter	US dollars
1999-09-30	4657
1999-12-31	4175
2000-03-31	4141
2000-06-30	2989
2000-09-30	3022
2000-12-31	4504
2001-03-31	5658
2001-06-30	5310
2001-09-30	6718
2001-12-31	6303
2002-03-31	9185
2002-06-30	6811
2002-09-30	6910
2002-12-31	8027
2003-03-31	8282
2003-06-30	9193
2003-09-30	9126
2003-12-31	10972
2004-03-31	10542
2004-06-30	10209
2004-09-30	10328