Quarterly US dollars
1999-03-31 6692
1999-06-30 5707
1999-09-30 7790
1999-12-31 5547
2000-03-31 6779
2000-06-30 7807
2000-09-30 7007
2000-12-31 7320
2001-03-31 6958
2001-06-30 8932
2001-09-30 11561
2001-12-31 10684
2002-03-31 9702
2002-06-30 11053
2002-09-30 11572
2002-12-31 11312
2003-03-31 10885
2003-06-30 10638
2003-09-30 7563
2003-12-31 8434
2004-03-31 8875
2004-06-30 10092
2004-09-30 10538
2004-12-31 13256
2005-03-31 11029
2005-06-30 8876
2005-09-30 7552
2005-12-31 9569
2006-03-31 10028
2006-06-30 10407
2006-09-30 11194
2006-12-31 11610
2007-03-31 14456
2007-06-30 14884
2007-09-30 12999
2007-12-31 16204
2008-03-31 13654
2008-06-30 15106
2008-09-30 10699
2008-12-31 12814
2009-03-31 7883
2009-06-30 8418
2009-09-30 7598
2009-12-31 4793
2010-03-31 7201
2010-06-30 5687
2010-09-30 6350
2010-12-31 7104
2011-03-31 8836
2011-06-30 5958
2011-09-30 5705
2011-12-31 6488
2012-03-31 6320
2012-06-30 4469
2012-09-30 5438
2012-12-31 3543
2013-03-31 4638
2013-06-30 3889
2013-09-30 4927
2013-12-31 5226
2014-03-31 3932
2014-06-30 4193
2014-09-30 4018
2014-12-31 3501
2015-03-31 2611
2015-06-30 2334
2015-09-30 2668
2015-12-31 2665
2016-03-31 2790
2016-06-30 2725
2016-09-30 2700
2016-12-31 3407
2017-03-31 3581
2017-06-30 3276
2017-09-30 3690
2017-12-31 3404
2018-03-31 4011
2018-06-30 4255
2018-09-30 4381
2018-12-31 2702
2019-03-31 3412
2019-06-30 3515
2019-09-30 4223
2019-12-31 4258
2020-03-31 3256
2020-06-30 2586
2020-09-30 3209
2020-12-31 2598
2021-03-31 3189
2021-06-30 2631
2021-09-30 3171
2021-12-31 3277
2022-03-31 3010
2022-06-30 3498
2022-09-30 3773
2022-12-31 3608
2023-03-31 3646
2023-06-30 4119
2023-09-30 3466