Quarterly US dollars
1986-09-30 124000
1986-12-31 125000
1987-03-31 129000
1987-06-30 131000
1987-09-30 134000
1987-12-31 146000
1988-03-31 142000
1988-06-30 140000
1988-09-30 144000
1988-12-31 139000
1989-03-31 144000
1989-06-30 141000
1989-09-30 147000
1989-12-31 143000
1990-03-31 143000
1990-06-30 146000
1990-09-30 152000
1990-12-31 153000
1991-03-31 143000
1991-06-30 134000
1991-09-30 143000
1991-12-31 149000
1992-03-31 146000
1992-06-30 156000
1992-09-30 173000
1992-12-31 162000
1993-03-31 183000
1993-06-30 184000
1993-09-30 189000
1993-12-31 202000
1994-03-31 195000
1994-06-30 204000
1994-09-30 215000
1994-12-31 210000
1995-03-31 224000
1995-06-30 222000
1995-09-30 218000
1995-12-31 218000
1996-03-31 222000
1996-06-30 221000
1996-09-30 231000
1996-12-31 230000
1997-03-31 244000
1997-06-30 258000
1997-09-30 279000
1997-12-31 326000
1998-03-31 332000
1998-06-30 341000
1998-09-30 353000
1998-12-31 324000
1999-03-31 380891
1999-06-30 427435
1999-09-30 388944
1999-12-31 353392
2000-03-31 392097
2000-06-30 407943
2000-09-30 402611
2000-12-31 412425
2001-03-31 434107
2001-06-30 428140
2001-09-30 467530
2001-12-31 498429
2002-03-31 501014
2002-06-30 531068
2002-09-30 566365
2002-12-31 595245
2003-03-31 646498
2003-06-30 681942
2003-09-30 711589
2003-12-31 723455
2004-03-31 826056
2004-06-30 798907
2004-09-30 910833
2004-12-31 905078
2005-03-31 995974
2005-06-30 979600
2005-09-30 1128273
2005-12-31 1050580
2006-03-31 1189397
2006-06-30 1183555
2006-09-30 1316968
2006-12-31 1348551
2007-03-31 1562821
2007-06-30 1640049
2007-09-30 1917731
2007-12-31 1879039
2008-03-31 2141877
2008-06-30 1931193
2008-09-30 2094995
2008-12-31 1730850
2009-03-31 1684161
2009-06-30 1708696
2009-09-30 1751831
2009-12-31 1752027
2010-03-31 1865373
2010-06-30 1933875
2010-09-30 2118392
2010-12-31 2022180
2011-03-31 2209476
2011-06-30 2191358
2011-09-30 2175968
2011-12-31 2081061
2012-03-31 2206856
2012-06-30 2191610
2012-09-30 2167068
2012-12-31 2084785
2013-03-31 1984429
2013-06-30 1959854
2013-09-30 1827587
2013-12-31 1760957
2014-03-31 1793117
2014-06-30 1758329
2014-09-30 1696080
2014-12-31 1573067
2015-03-31 1527597
2015-06-30 1493288
2015-09-30 1464273
2015-12-31 1426124
2016-03-31 1458112
2016-06-30 1492652
2016-09-30 1419527
2016-12-31 1300827
2017-03-31 1369938
2017-06-30 1384019
2017-09-30 1466685
2017-12-31 1536333
2018-03-31 1611375
2018-06-30 1467624
2018-09-30 1495389
2018-12-31 1489809
2019-03-31 1513314
2019-06-30 1524450
2019-09-30 1515942
2019-12-31 1518369
2020-03-31 1733639
2020-06-30 1588637
2020-09-30 1603607
2020-12-31 1726357
2021-03-31 1724729
2021-06-30 1722820
2021-09-30 1672913
2021-12-31 1731276
2022-03-31 1802610
2022-06-30 1783958
2022-09-30 1774674
2022-12-31 1772983
2023-03-31 1888193
2023-06-30 1941701
2023-09-30 1908473