Quarterly US dollars
1999-03-31 605
1999-06-30 536
1999-09-30 599
1999-12-31 733
2000-03-31 613
2000-06-30 553
2000-09-30 612
2000-12-31 726
2001-03-31 951
2001-06-30 909
2001-09-30 987
2001-12-31 929
2002-03-31 966
2002-06-30 1001
2002-09-30 1083
2002-12-31 1210
2003-03-31 1314
2003-06-30 1342
2003-09-30 1358
2003-12-31 1525
2004-03-31 1476
2004-06-30 1511
2004-09-30 1800
2004-12-31 1803
2005-03-31 2191
2005-06-30 1896
2005-09-30 2049
2005-12-31 2640
2006-03-31 2796
2006-06-30 2428
2006-09-30 3262
2006-12-31 3185
2007-03-31 3660
2007-06-30 2988
2007-09-30 3692
2007-12-31 2585
2008-03-31 2449
2008-06-30 4056
2008-09-30 4412
2008-12-31 3732
2009-03-31 3991
2009-06-30 4026
2009-09-30 3905
2009-12-31 3749
2010-03-31 3780
2010-06-30 3464
2010-09-30 3559
2010-12-31 2990
2011-03-31 6404
2011-06-30 5689
2011-09-30 3835
2011-12-31 3266
2012-03-31 3696
2012-06-30 3690
2012-09-30 3938
2012-12-31 4444
2013-03-31 4228
2013-06-30 3940
2013-09-30 3684
2013-12-31 2694
2014-03-31 3162
2014-06-30 3057
2014-09-30 3403
2014-12-31 3458
2015-03-31 3734
2015-06-30 3659
2015-09-30 3221
2015-12-31 3063
2016-03-31 3465
2016-06-30 3444
2016-09-30 3287
2016-12-31 3088
2017-03-31 3165
2017-06-30 3759
2017-09-30 3305
2017-12-31 2920
2018-03-31 2716
2018-06-30 2937
2018-09-30 2726
2018-12-31 3184
2019-03-31 4138
2019-06-30 5012
2019-09-30 3885
2019-12-31 4111
2020-03-31 4136
2020-06-30 3729
2020-09-30 4188
2020-12-31 4408
2021-03-31 3826
2021-06-30 3901
2021-09-30 3500
2021-12-31 3363
2022-03-31 3127
2022-06-30 3737
2022-09-30 5107
2022-12-31 4217
2023-03-31 5388
2023-06-30 4681
2023-09-30 4691