Month Number 1968-04-01 122553 1968-05-01 132527 1968-06-01 168906 1968-07-01 105621 1968-08-01 113573 1968-09-01 125574 1968-10-01 131539 1968-11-01 147144 1968-12-01 188947 1969-01-01 102288 1969-02-01 130088 1969-03-01 184352 1969-04-01 159931 1969-05-01 168910 1969-06-01 176035 1969-07-01 186058 1969-08-01 150828 1969-09-01 201315 1969-10-01 214187 1969-11-01 153887 1969-12-01 208783 1970-01-01 125357 1970-02-01 163604 1970-03-01 238712 1970-04-01 186883 1970-05-01 189958 1970-06-01 214981 1970-07-01 228270 1970-08-01 173212 1970-09-01 201018 1970-10-01 198126 1970-11-01 192470 1970-12-01 266538 1971-01-01 133803 1971-02-01 166248 1971-03-01 250742 1971-04-01 191121 1971-05-01 182473 1971-06-01 218752 1971-07-01 225645 1971-08-01 162274 1971-09-01 209980 1971-10-01 204440 1971-11-01 272747 1971-12-01 186286 1972-01-01 122694 1972-02-01 170330 1972-03-01 264163 1972-04-01 193662 1972-05-01 215517 1972-06-01 224082 1972-07-01 247404 1972-08-01 191974 1972-09-01 224110 1972-10-01 226211 1972-11-01 246250 1972-12-01 300690 1973-01-01 159269 1973-02-01 229862 1973-03-01 329198 1973-04-01 236877 1973-05-01 260905 1973-06-01 251431 1973-07-01 294918 1973-08-01 211903 1973-09-01 250967 1973-10-01 247638 1973-11-01 261595 1973-12-01 199029 1974-01-01 128810 1974-02-01 128050 1974-03-01 196039 1974-04-01 153030 1974-05-01 143151 1974-06-01 180707 1974-07-01 236090 1974-08-01 156556 1974-09-01 217275 1974-10-01 230704 1974-11-01 232066 1974-12-01 283062 1975-01-01 150622 1975-02-01 202325 1975-03-01 293330 1975-04-01 215804 1975-05-01 198154 1975-06-01 227874 1975-07-01 300116 1975-08-01 164360 1975-09-01 241949 1975-10-01 260714 1975-11-01 246717 1975-12-01 235670 1976-01-01 117050 1976-02-01 162737 1976-03-01 265850 1976-04-01 191325 1976-05-01 157337 1976-06-01 221890 1976-07-01 283408 1976-08-01 162498 1976-09-01 210212 1976-10-01 203723 1976-11-01 244299 1976-12-01 229100 1977-01-01 128109 1977-02-01 190314 1977-03-01 288928 1977-04-01 197494 1977-05-01 176005 1977-06-01 214688 1977-07-01 255978 1977-08-01 149103 1977-09-01 206392 1977-10-01 216429 1977-11-01 238978 1977-12-01 237677 1978-01-01 125604 1978-02-01 188429 1978-03-01 326404 1978-04-01 220034 1978-05-01 216029 1978-06-01 259553 1978-07-01 309602 1978-08-01 166985 1978-09-01 247884 1978-10-01 249166 1978-11-01 271001 1978-12-01 276019 1979-01-01 150175 1979-02-01 225575 1979-03-01 365135 1979-04-01 239921 1979-05-01 243660 1979-06-01 262226 1979-07-01 316602 1979-08-01 182198 1979-09-01 251693 1979-10-01 253740 1979-11-01 279228 1979-12-01 266719 1980-01-01 149718 1980-02-01 229619 1980-03-01 366880 1980-04-01 227370 1980-05-01 225855 1980-06-01 246715 1980-07-01 315987 1980-08-01 152100 1980-09-01 228812 1980-10-01 226235 1980-11-01 234950 1980-12-01 249935 1981-01-01 141555 1981-02-01 211864 1981-03-01 358085 1981-04-01 264772 1981-05-01 189778 1981-06-01 233184 1981-07-01 296741 1981-08-01 151417 1981-09-01 252525 1981-10-01 249034 1981-11-01 262262 1981-12-01 255478 1982-01-01 141494 1982-02-01 222485 1982-03-01 404968 1982-04-01 241468 1982-05-01 213655 1982-06-01 271615 1982-07-01 323924 1982-08-01 156019 1982-09-01 267143 1982-10-01 234242 1982-11-01 277309 1982-12-01 283950 1983-01-01 155672 1983-02-01 238803 1983-03-01 416831 1983-04-01 241583 1983-05-01 214656 1983-06-01 218612 1983-07-01 380834 1983-08-01 175263 1983-09-01 282896 1983-10-01 253096 1983-11-01 283789 1983-12-01 273578 1984-01-01 150181 1984-02-01 252827 1984-03-01 456040 1984-04-01 265714 1984-05-01 216872 1984-06-01 248762 1984-07-01 307328 1984-08-01 160526 1984-09-01 259572 1984-10-01 246058 1984-11-01 271857 1984-12-01 259817 1985-01-01 153542 1985-02-01 255325 1985-03-01 462647 1985-04-01 249590 1985-05-01 208400 1985-06-01 241934 1985-07-01 322654 1985-08-01 164852 1985-09-01 265120 1985-10-01 257779 1985-11-01 261958 1985-12-01 260282 1986-01-01 157554 1986-02-01 252188 1986-03-01 449376 1986-04-01 249493 1986-05-01 223098 1986-06-01 287428 1986-07-01 323185 1986-08-01 162179 1986-09-01 263022 1986-10-01 280881 1986-11-01 242385 1986-12-01 255234 1987-01-01 154331 1987-02-01 259518 1987-03-01 455001 1987-04-01 238023 1987-05-01 216483 1987-06-01 288571 1987-07-01 350976 1987-08-01 171814 1987-09-01 282929 1987-10-01 290817 1987-11-01 288574 1987-12-01 277763 1988-01-01 176178 1988-02-01 301117 1988-03-01 519492 1988-04-01 287648 1988-05-01 253050 1988-06-01 331166 1988-07-01 372008 1988-08-01 193619 1988-09-01 331171 1988-10-01 309790 1988-11-01 336942 1988-12-01 305178 1989-01-01 171914 1989-02-01 281503 1989-03-01 490728 1989-04-01 360891 1989-05-01 340145 1989-06-01 418463 1989-07-01 461060 1989-08-01 259230 1989-09-01 403718 1989-10-01 397889 1989-11-01 417981 1989-12-01 400227 1990-01-01 261969 1990-02-01 407628 1990-03-01 660759 1990-04-01 400784 1990-05-01 391187 1990-06-01 473296 1990-07-01 519900 1990-08-01 310918 1990-09-01 425930 1990-10-01 421887 1990-11-01 421768 1990-12-01 406633 1991-01-01 262201 1991-02-01 410263 1991-03-01 648259 1991-04-01 398763 1991-05-01 369340 1991-06-01 421192 1991-07-01 490423 1991-08-01 288789 1991-09-01 402699 1991-10-01 401604 1991-11-01 414427 1991-12-01 360273 1992-01-01 261296 1992-02-01 392144 1992-03-01 599787 1992-04-01 374167 1992-05-01 315805 1992-06-01 414738 1992-07-01 452188 1992-08-01 237331 1992-09-01 378224 1992-10-01 336596 1992-11-01 360228 1992-12-01 331508 1993-01-01 235325 1993-02-01 371089 1993-03-01 619603 1993-04-01 338739 1993-05-01 286218 1993-06-01 375933 1993-07-01 407068 1993-08-01 226061 1993-09-01 368062 1993-10-01 313855 1993-11-01 344939 1993-12-01 312559 1994-01-01 232016 1994-02-01 345772 1994-03-01 602489 1994-04-01 326450 1994-05-01 284546 1994-06-01 376118 1994-07-01 416758 1994-08-01 247755 1994-09-01 387923 1994-10-01 318609 1994-11-01 355661 1994-12-01 316071 1995-01-01 241930 1995-02-01 384770 1995-03-01 647800 1995-04-01 321730 1995-05-01 293380 1995-06-01 397400 1995-07-01 426910 1995-08-01 253200 1995-09-01 407720 1995-10-01 353500 1995-11-01 380410 1995-12-01 335180 1996-01-01 258250 1996-02-01 404750 1996-03-01 633050 1996-04-01 336880 1996-05-01 306140 1996-06-01 386760 1996-07-01 457400 1996-08-01 257260 1996-09-01 429670 1996-10-01 394510 1996-11-01 429060 1996-12-01 375020 1997-01-01 234621 1997-02-01 365544 1997-03-01 585449 1997-04-01 225463 1997-05-01 210633 1997-06-01 284580 1997-07-01 325489 1997-08-01 177848 1997-09-01 317605 1997-10-01 276747 1997-11-01 277879 1997-12-01 293048 1998-01-01 180489 1998-02-01 280644 1998-03-01 469632 1998-04-01 216156 1998-05-01 210813 1998-06-01 278421 1998-07-01 323880 1998-08-01 172332 1998-09-01 309701 1998-10-01 237914 1998-11-01 239407 1998-12-01 226399 1999-01-01 178879 1999-02-01 265586 1999-03-01 436024 1999-04-01 196381 1999-05-01 196190 1999-06-01 255558 1999-07-01 269430 1999-08-01 162064 1999-09-01 276235 1999-10-01 216545 1999-11-01 239704 1999-12-01 225323 2000-01-01 185837 2000-02-01 267667 2000-03-01 418717 2000-04-01 199909 2000-05-01 203172 2000-06-01 271212 2000-07-01 265488 2000-08-01 172218 2000-09-01 275203 2000-10-01 231761 2000-11-01 250601 2000-12-01 236822 2001-01-01 184936 2001-02-01 270475 2001-03-01 424161 2001-04-01 200227 2001-05-01 212365 2001-06-01 274442 2001-07-01 296713 2001-08-01 191210 2001-09-01 271455 2001-10-01 220334 2001-11-01 236908 2001-12-01 233259 2002-01-01 193432 2002-02-01 271309 2002-03-01 411236 2002-04-01 212189 2002-05-01 227307 2002-06-01 265367 2002-07-01 289958 2002-08-01 200984 2002-09-01 302175 2002-10-01 250434 2002-11-01 264694 2002-12-01 245112 2003-01-01 207183 2003-02-01 296256 2003-03-01 463402 2003-04-01 196832 2003-05-01 233230 2003-06-01 265798 2003-07-01 290121 2003-08-01 188499 2003-09-01 303856 2003-10-01 245055 2003-11-01 242320 2003-12-01 235643 2004-01-01 230855 2004-02-01 311952 2004-03-01 492093 2004-04-01 200948 2004-05-01 223049 2004-06-01 276887 2004-07-01 316525 2004-08-01 211328 2004-09-01 331593 2004-10-01 251685 2004-11-01 286358 2004-12-01 262775 2005-01-01 228036 2005-02-01 313841 2005-03-01 490741 2005-04-01 225635 2005-05-01 238182 2005-06-01 300707 2005-07-01 302284 2005-08-01 203537 2005-09-01 329607 2005-10-01 239047 2005-11-01 258463 2005-12-01 231261 2006-01-01 223653 2006-02-01 305330 2006-03-01 480390 2006-04-01 201222 2006-05-01 214420 2006-06-01 273039 2006-07-01 267772 2006-08-01 188934 2006-09-01 300358 2006-10-01 221839 2006-11-01 242805 2006-12-01 214372 2007-01-01 200953 2007-02-01 281829 2007-03-01 420586 2007-04-01 183837 2007-05-01 199438 2007-06-01 247229 2007-07-01 244842 2007-08-01 190465 2007-09-01 285632 2007-10-01 234029 2007-11-01 258805 2007-12-01 205548 2008-01-01 213857 2008-02-01 286278 2008-03-01 414633 2008-04-01 201155 2008-05-01 190695 2008-06-01 242790 2008-07-01 267724 2008-08-01 166153 2008-09-01 269468 2008-10-01 202572 2008-11-01 186554 2008-12-01 158785 2009-01-01 153950 2009-02-01 194236 2009-03-01 286312 2009-04-01 146478 2009-05-01 159605 2009-06-01 219836 2009-07-01 266173 2009-08-01 179766 2009-09-01 294229 2009-10-01 240961 2009-11-01 268450 2009-12-01 230316 2010-01-01 219844 2010-02-01 270388 2010-03-01 402826 2010-04-01 200343 2010-05-01 207272 2010-06-01 265925 2010-07-01 307397 2010-08-01 267777 2010-09-01 278283 2010-10-01 171641 2010-11-01 178463 2010-12-01 157443 2011-01-01 167574 2011-02-01 226691 2011-03-01 243783 2011-04-01 97128 2011-05-01 128544 2011-06-01 202345 2011-07-01 215265 2011-08-01 188656 2011-09-01 280379 2011-10-01 220271 2011-11-01 221048 2011-12-01 194352 2012-01-01 239107 2012-02-01 301791 2012-03-01 443727 2012-04-01 187036 2012-05-01 210818 2012-06-01 282804 2012-07-01 295581 2012-08-01 205012 2012-09-01 252187 2012-10-01 196466 2012-11-01 213762 2012-12-01 186360 2013-01-01 206545 2013-02-01 261619 2013-03-01 369703 2013-04-01 187619 2013-05-01 191976 2013-06-01 233176 2013-07-01 249899 2013-08-01 188867 2013-09-01 284109 2013-10-01 232922 2013-11-01 242497 2013-12-01 223179 2014-01-01 264278 2014-02-01 300007 2014-03-01 417136 2014-04-01 165486 2014-05-01 178653 2014-06-01 229037 2014-07-01 250689 2014-08-01 177749 2014-09-01 268435 2014-10-01 206683 2014-11-01 203911 2014-12-01 198408 2015-01-01 207635 2015-02-01 249565 2015-03-01 356412 2015-04-01 170240 2015-05-01 180759 2015-06-01 239582 2015-07-01 245680 2015-08-01 180850 2015-09-01 259813 2015-10-01 206608 2015-11-01 203014 2015-12-01 204327 2016-01-01 210384 2016-02-01 239409 2016-03-01 346794 2016-04-01 184562 2016-05-01 193891 2016-06-01 248301 2016-07-01 244215 2016-08-01 190749 2016-09-01 269713 2016-10-01 209836 2016-11-01 235871 2016-12-01 227766 2017-01-01 229100 2017-02-01 273860 2017-03-01 398048 2017-04-01 195874 2017-05-01 206935 2017-06-01 274000 2017-07-01 241127 2017-08-01 196169 2017-09-01 276049 2017-10-01 200547 2017-11-01 222938 2017-12-01 228363 2018-01-01 215058 2018-02-01 259780 2018-03-01 378898 2018-04-01 193585 2018-05-01 202031 2018-06-01 252477 2018-07-01 245068 2018-08-01 200355 2018-09-01 265059 2018-10-01 227172