Quarter	US dollars
1993-09-30	302
1993-12-31	421
1994-03-31	488
1994-06-30	628
1994-09-30	813
1994-12-31	806
1995-03-31	999
1995-06-30	1076
1995-09-30	2446
1995-12-31	2819
1996-03-31	2960
1996-06-30	4243
1996-09-30	3507
1996-12-31	3543
1997-03-31	4127
1997-06-30	4914
1997-09-30	4349
1997-12-31	3295
1998-03-31	3335
1998-06-30	3312
1998-09-30	3269
1998-12-31	2410
1999-03-31	2389
1999-06-30	2950
1999-09-30	2577
1999-12-31	2012
2000-03-31	2034
2000-06-30	2747
2000-09-30	3827
2000-12-31	2901
2001-03-31	2618
2001-06-30	2912
2001-09-30	2662
2001-12-31	3680
2002-03-31	3076
2002-06-30	4013
2002-09-30	3872
2002-12-31	2440
2003-03-31	2585
2003-06-30	2912
2003-09-30	2615
2003-12-31	2321
2004-03-31	1372
2004-06-30	2156
2004-09-30	1843
2004-12-31	2334
2005-03-31	2537
2005-06-30	2806
2005-09-30	2859
2005-12-31	3666
2006-03-31	4834
2006-06-30	4761
2006-09-30	5801
2006-12-31	4610
2007-03-31	3643
2007-06-30	4248
2007-09-30	3917
2007-12-31	4806
2008-03-31	6312
2008-06-30	4990
2008-09-30	5311
2008-12-31	4000
2009-03-31	2995
2009-06-30	3605
2009-09-30	2772
2009-12-31	4219
2010-03-31	3255
2010-06-30	1533
2010-09-30	2753
2010-12-31	2321
2011-03-31	2603
2011-06-30	2059
2011-09-30	3267
2011-12-31	3244
2012-03-31	5105
2012-06-30	4808
2012-09-30	3530
2012-12-31	2935
2013-03-31	2360
2013-06-30	2256
2013-09-30	2118
2013-12-31	2105
2014-03-31	2648
2014-06-30	1835
2014-09-30	1331
2014-12-31	1257
2015-03-31	1693
2015-06-30	1352
2015-09-30	2179
2015-12-31	1307
2016-03-31	1432
2016-06-30	1447
2016-09-30	1304
2016-12-31	2154
2017-03-31	5151
2017-06-30	3327
2017-09-30	1664
2017-12-31	2382
2018-03-31	2174
2018-06-30	3534
2018-09-30	1402
2018-12-31	2526
2019-03-31	1807
2019-06-30	2105
2019-09-30	1622
2019-12-31	2027
2020-03-31	2349
2020-06-30	2438
2020-09-30	2515
2020-12-31	3149
2021-03-31	2222
2021-06-30	2131
2021-09-30	1624
2021-12-31	2391
2022-03-31	2617
2022-06-30	3266
2022-09-30	2065
2022-12-31	1966
2023-03-31	1923
2023-06-30	5644
2023-09-30	4598