Quarterly US dollars
1986-09-30 207
1986-12-31 143
1987-03-31 130
1987-06-30 193
1987-09-30 193
1987-12-31 193
1988-03-31 155
1988-06-30 167
1988-09-30 125
1988-12-31 88
1989-03-31 108
1989-06-30 117
1989-09-30 54
1989-12-31 61
1990-03-31 62
1990-06-30 47
1990-09-30 52
1990-12-31 125
1991-03-31 145
1991-06-30 38
1991-09-30 33
1991-12-31 26
1992-03-31 43
1992-06-30 53
1992-09-30 52
1992-12-31 62
1993-03-31 49
1993-06-30 43
1993-09-30 39
1993-12-31 46
1994-03-31 49
1994-06-30 50
1994-09-30 48
1994-12-31 43
1995-03-31 20
1995-06-30 20
1995-09-30 18
1995-12-31 18
1996-03-31 19
1996-06-30 19
1996-09-30 20
1996-12-31 23
1997-03-31 11
1997-06-30 59
1997-09-30 15
1997-12-31 44
1998-03-31 22
1998-06-30 23
1998-09-30 44
1998-12-31 58
1999-03-31 52
1999-06-30 19
1999-09-30 17
1999-12-31 21
2000-03-31 34
2000-06-30 67
2000-09-30 103
2000-12-31 99
2001-03-31 122
2001-06-30 118
2001-09-30 109
2001-12-31 129
2002-03-31 107
2002-06-30 81
2002-09-30 74
2002-12-31 47
2003-03-31 34
2003-06-30 43
2003-09-30 30
2003-12-31 26
2004-03-31 23
2004-06-30 35
2004-09-30 26
2004-12-31 23
2005-03-31 14
2005-06-30 30
2005-09-30 22
2005-12-31 23
2006-03-31 24
2006-06-30 24
2006-09-30 12
2006-12-31 20
2007-03-31 34
2007-06-30 29
2007-09-30 23
2007-12-31 32
2008-03-31 50
2008-06-30 33
2008-09-30 40
2008-12-31 51
2009-03-31 46
2009-06-30 85
2009-09-30 77
2009-12-31 56
2010-03-31 53
2010-06-30 53
2010-09-30 48
2010-12-31 78
2011-03-31 68
2011-06-30 65
2011-09-30 72
2011-12-31 47
2012-03-31 45
2012-06-30 49
2012-09-30 27
2012-12-31 28
2013-03-31 42
2013-06-30 46
2013-09-30 94
2013-12-31 49
2014-03-31 51
2014-06-30 41
2014-09-30 41
2014-12-31 51
2015-03-31 47
2015-06-30 45
2015-09-30 48
2015-12-31 52
2016-03-31 33
2016-06-30 43
2016-09-30 17
2016-12-31 17
2017-03-31 38
2017-06-30 22
2017-09-30 36
2017-12-31 67
2018-03-31 63
2018-06-30 61
2018-09-30 4
2018-12-31 13
2019-03-31 23
2019-06-30 84
2019-09-30 82
2019-12-31 58
2020-03-31 58
2020-06-30 78
2020-09-30 87
2020-12-31 71
2021-03-31 94
2021-06-30 100
2021-09-30 106
2021-12-31 103
2022-03-31 77
2022-06-30 63
2022-09-30 50
2022-12-31 36
2023-03-31 73
2023-06-30 139
2023-09-30 132