Quarterly
1986-09-30 319475
1986-12-31 326338
1987-03-31 326921
1987-06-30 352148
1987-09-30 364580
1987-12-31 380283
1988-03-31 369985
1988-06-30 373453
1988-09-30 378346
1988-12-31 387301
1989-03-31 389410
1989-06-30 372771
1989-09-30 385974
1989-12-31 388481
1990-03-31 366344
1990-06-30 364800
1990-09-30 380629
1990-12-31 396683
1991-03-31 378187
1991-06-30 355442
1991-09-30 345315
1991-12-31 337824
1992-03-31 326219
1992-06-30 333160
1992-09-30 338651
1992-12-31 367480
1993-03-31 336132
1993-06-30 345842
1993-09-30 338824
1993-12-31 353166
1994-03-31 369399
1994-06-30 386705
1994-09-30 405638
1994-12-31 420029
1995-03-31 410504
1995-06-30 396231
1995-09-30 403497
1995-12-31 410465
1996-03-31 412485
1996-06-30 398876
1996-09-30 388831
1996-12-31 399696
1997-03-31 411447
1997-06-30 417954
1997-09-30 438225
1997-12-31 486754
1998-03-31 458200
1998-06-30 457132
1998-09-30 494565
1998-12-31 493747
1999-03-31 469799
1999-06-30 463405
1999-09-30 463299
1999-12-31 436142
2000-03-31 448474
2000-06-30 469234
2000-09-30 474640
2000-12-31 506994
2001-03-31 521412
2001-06-30 499853
2001-09-30 501992
2001-12-31 556446
2002-03-31 510292
2002-06-30 491485
2002-09-30 493931
2002-12-31 550531
2003-03-31 522896
2003-06-30 558712
2003-09-30 502756
2003-12-31 565733
2004-03-31 625229
2004-06-30 643159
2004-09-30 634052
2004-12-31 660819
2005-03-31 663966
2005-06-30 704204
2005-09-30 676249
2005-12-31 701861
2006-03-31 750978
2006-06-30 756317
2006-09-30 801133
2006-12-31 779356
2007-03-31 791257
2007-06-30 796533
2007-09-30 928523
2007-12-31 979307
2008-03-31 1155437
2008-06-30 997703
2008-09-30 1054481
2008-12-31 1038923
2009-03-31 1066509
2009-06-30 939128
2009-09-30 955765
2009-12-31 1002183
2010-03-31 962180
2010-06-30 932466
2010-09-30 999841
2010-12-31 945214
2011-03-31 1033999
2011-06-30 1048747
2011-09-30 1294204
2011-12-31 1240190
2012-03-31 1216110
2012-06-30 1047417
2012-09-30 1040341
2012-12-31 1027234
2013-03-31 999237
2013-06-30 1034605
2013-09-30 1051281
2013-12-31 1021993
2014-03-31 1059320
2014-06-30 1121209
2014-09-30 1142093
2014-12-31 1129300
2015-03-31 1047109
2015-06-30 1009261
2015-09-30 964079
2015-12-31 997348