+-----------+-------+
| Timeframe | Count |
+-----------+-------+
|    200208 |   239 | 
|    200209 |   140 | 
|    200210 |   162 | 
|    200211 |   241 | 
|    200212 |   346 | 
|    200301 |   501 | 
|    200302 |   512 | 
|    200303 |   430 | 
|    200304 |   322 | 
|    200305 |   275 | 
|    200306 |   405 | 
|    200307 |   543 | 
|    200308 |  1189 | 
|    200309 |   943 | 
|    200310 |  1243 | 
|    200311 |  1217 | 
|    200312 |  1065 | 
|    200401 |  1264 | 
|    200402 |  2745 | 
|    200403 |  3496 | 
|    200404 |  3498 | 
|    200405 |  3442 | 
|    200406 |  3830 | 
|    200407 |  3520 | 
|    200408 |  3926 | 
|    200409 |  4005 | 
|    200410 |  4312 | 
|    200411 |  3270 | 
|    200412 |  3681 | 
|    200501 |  4574 | 
|    200502 |  5244 | 
|    200503 |  7313 | 
|    200504 |  5725 | 
|    200505 |  4753 | 
|    200506 |  5727 | 
|    200507 |  6977 | 
|    200508 |  4889 | 
|    200509 |  4943 | 
|    200510 |  5156 | 
|    200511 |  4390 | 
|    200512 |  5482 | 
|    200601 |  6669 | 
|    200602 |  6190 | 
|    200603 |  6735 | 
|    200604 |  6365 | 
|    200605 |  7148 | 
|    200606 |  5936 | 
|    200607 |  6801 | 
|    200608 |  7942 | 
|    200609 |  7355 | 
|    200610 |  7350 | 
|    200611 |  6295 | 
|    200612 |  6796 | 
|    200701 |  7191 | 
|    200702 |  6218 | 
|    200703 |  7140 | 
|    200704 |  7177 | 
|    200705 |  7788 | 
|    200706 |  7738 | 
|    200707 |  7123 | 
|    200708 |  7634 | 
|    200709 |  7686 | 
|    200710 |  9109 | 
|    200711 |  9045 | 
|    200712 |  8339 | 
|    200801 | 12206 | 
|    200802 |  5951 | 
+-----------+-------+