Quarter	US dollars
1999-09-30	8411
1999-12-31	12879
2000-03-31	14094
2000-06-30	15147
2000-09-30	16405
2000-12-31	14917
2001-03-31	15175
2001-06-30	18872
2001-09-30	17244
2001-12-31	16338
2002-03-31	18015
2002-06-30	19089
2002-09-30	19077
2002-12-31	20164
2003-03-31	21222
2003-06-30	22695
2003-09-30	21238
2003-12-31	21212
2004-03-31	21899
2004-06-30	22709
2004-09-30	21405