Quarter	US dollars
1999-09-30	12370
1999-12-31	13589
2000-03-31	13909
2000-06-30	14426
2000-09-30	14147
2000-12-31	16414
2001-03-31	15195
2001-06-30	14446
2001-09-30	14796
2001-12-31	14948
2002-03-31	16267
2002-06-30	16117
2002-09-30	17421
2002-12-31	16752
2003-03-31	18005
2003-06-30	17761
2003-09-30	17692
2003-12-31	21099
2004-03-31	22913
2004-06-30	20029
2004-09-30	21253