Quarter	US dollars
1999-09-30	19577
1999-12-31	21087
2000-03-31	23039
2000-06-30	22256
2000-09-30	27000
2000-12-31	27512
2001-03-31	29301
2001-06-30	28345
2001-09-30	29393
2001-12-31	28001
2002-03-31	29110
2002-06-30	28197
2002-09-30	30002
2002-12-31	29197
2003-03-31	30021
2003-06-30	31196
2003-09-30	32748
2003-12-31	33731
2004-03-31	37144
2004-06-30	36773
2004-09-30	38468