Quarter	US dollars
1999-09-30	1456
1999-12-31	1691
2000-03-31	1618
2000-06-30	1899
2000-09-30	1858
2000-12-31	2687
2001-03-31	2278
2001-06-30	2189
2001-09-30	2299
2001-12-31	2955
2002-03-31	2706
2002-06-30	2684
2002-09-30	3269
2002-12-31	2168
2003-03-31	2255
2003-06-30	3639
2003-09-30	2690
2003-12-31	3359
2004-03-31	3345
2004-06-30	4016
2004-09-30	4191