Quarterly US dollars
1986-09-30 212
1986-12-31 211
1987-03-31 186
1987-06-30 250
1987-09-30 182
1987-12-31 249
1988-03-31 161
1988-06-30 254
1988-09-30 259
1988-12-31 254
1989-03-31 199
1989-06-30 244
1989-09-30 311
1989-12-31 207
1990-03-31 202
1990-06-30 263
1990-09-30 210
1990-12-31 228
1991-03-31 184
1991-06-30 202
1991-09-30 261
1991-12-31 267
1992-03-31 245
1992-06-30 271
1992-09-30 244
1992-12-31 219
1993-03-31 252
1993-06-30 270
1993-09-30 72
1993-12-31 75
1994-03-31 81
1994-06-30 79
1994-09-30 89
1994-12-31 79
1995-03-31 81
1995-06-30 76
1995-09-30 75
1995-12-31 78
1996-03-31 92
1996-06-30 92
1996-09-30 91
1996-12-31 145
1997-03-31 155
1997-06-30 103
1997-09-30 98
1997-12-31 187
1998-03-31 168
1998-06-30 132
1998-09-30 85
1998-12-31 85
1999-03-31 82
1999-06-30 81
1999-09-30 88
1999-12-31 86
2000-03-31 78
2000-06-30 66
2000-09-30 70
2000-12-31 67
2001-03-31 59
2001-06-30 61
2001-09-30 75
2001-12-31 139
2002-03-31 65
2002-06-30 92
2002-09-30 115
2002-12-31 115
2003-03-31 93
2003-06-30 83
2003-09-30 109
2003-12-31 144
2004-03-31 158
2004-06-30 102
2004-09-30 98
2004-12-31 156
2005-03-31 112
2005-06-30 110
2005-09-30 109
2005-12-31 84
2006-03-31 76
2006-06-30 183
2006-09-30 96
2006-12-31 82
2007-03-31 92
2007-06-30 83
2007-09-30 91
2007-12-31 255
2008-03-31 319
2008-06-30 329
2008-09-30 239
2008-12-31 273
2009-03-31 279
2009-06-30 149
2009-09-30 156
2009-12-31 222
2010-03-31 324
2010-06-30 543
2010-09-30 315
2010-12-31 633
2011-03-31 230
2011-06-30 262
2011-09-30 235
2011-12-31 212
2012-03-31 205
2012-06-30 189
2012-09-30 170
2012-12-31 232
2013-03-31 191
2013-06-30 168
2013-09-30 188
2013-12-31 165
2014-03-31 146
2014-06-30 184
2014-09-30 158
2014-12-31 200
2015-03-31 214
2015-06-30 360
2015-09-30 417
2015-12-31 410
2016-03-31 560
2016-06-30 216
2016-09-30 361
2016-12-31 275
2017-03-31 156
2017-06-30 113
2017-09-30 120
2017-12-31 222
2018-03-31 164
2018-06-30 182
2018-09-30 202
2018-12-31 201
2019-03-31 162
2019-06-30 108
2019-09-30 137
2019-12-31 174
2020-03-31 185
2020-06-30 213
2020-09-30 363
2020-12-31 441
2021-03-31 327
2021-06-30 229
2021-09-30 272
2021-12-31 208
2022-03-31 160
2022-06-30 156
2022-09-30 192
2022-12-31 152
2023-03-31 171
2023-06-30 195
2023-09-30 154