Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-12-308920-index-headers.html | 2012-07-20 16:08:42 | |
| 0001193125-12-308920-index.html | 2012-07-20 16:08:42 | |
| 0001193125-12-308920.txt | 2012-07-20 16:08:42 | |
 0001193125-12-308920-xbrl.zip | 135578 | 2012-07-20 16:08:42 |
 BarChart1.jpg | 28081 | 2012-07-20 16:08:42 |
 BarChart10.jpg | 12478 | 2012-07-20 16:08:42 |
 BarChart11.jpg | 12306 | 2012-07-20 16:08:42 |
 BarChart12.jpg | 28081 | 2012-07-20 16:08:42 |
 BarChart13.jpg | 28142 | 2012-07-20 16:08:42 |
 BarChart14.jpg | 28116 | 2012-07-20 16:08:42 |
 BarChart15.jpg | 27928 | 2012-07-20 16:08:42 |
 BarChart16.jpg | 27918 | 2012-07-20 16:08:42 |
 BarChart17.jpg | 25522 | 2012-07-20 16:08:42 |
 BarChart18.jpg | 25537 | 2012-07-20 16:08:42 |
 BarChart19.jpg | 11823 | 2012-07-20 16:08:42 |
 BarChart2.jpg | 28142 | 2012-07-20 16:08:42 |
 BarChart20.jpg | 11823 | 2012-07-20 16:08:42 |
 BarChart21.jpg | 12478 | 2012-07-20 16:08:42 |
 BarChart22.jpg | 12306 | 2012-07-20 16:08:42 |
 BarChart3.jpg | 28116 | 2012-07-20 16:08:42 |
 BarChart4.jpg | 27928 | 2012-07-20 16:08:42 |
 BarChart5.jpg | 27918 | 2012-07-20 16:08:42 |
 BarChart6.jpg | 25522 | 2012-07-20 16:08:42 |
 BarChart7.jpg | 25537 | 2012-07-20 16:08:42 |
 BarChart8.jpg | 11823 | 2012-07-20 16:08:42 |
 BarChart9.jpg | 11823 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102.xml | 591636 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102.xsd | 38437 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102_cal.xml | 51105 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102_def.xml | 31755 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102_lab.xml | 186715 | 2012-07-20 16:08:42 |
| cik0001097519-2012070102_pre.xml | 662136 | 2012-07-20 16:08:42 |
| d372147d485bpos.htm | 35775 | 2012-07-20 16:08:42 |
| FilingSummary.xml | 9702 | 2012-07-20 16:08:42 |
| Financial_Report.xls | 2546640 | 2012-07-20 16:08:42 |
| R1.htm | 575595 | 2012-07-20 16:08:42 |
| R10.htm | 124257 | 2012-07-20 16:08:42 |
| R11.htm | 135540 | 2012-07-20 16:08:42 |
| R12.htm | 127597 | 2012-07-20 16:08:42 |
| R13.htm | 61457 | 2012-07-20 16:08:42 |
| R2.htm | 135406 | 2012-07-20 16:08:42 |
| R25.htm | 111079 | 2012-07-20 16:08:42 |
| R3.htm | 123249 | 2012-07-20 16:08:42 |
| R4.htm | 147633 | 2012-07-20 16:08:42 |
| R5.htm | 133605 | 2012-07-20 16:08:42 |
| R53.htm | 60174 | 2012-07-20 16:08:42 |
| R6.htm | 133154 | 2012-07-20 16:08:42 |
| R64.htm | 12529 | 2012-07-20 16:08:42 |
| R65.htm | 98528 | 2012-07-20 16:08:42 |
| R7.htm | 137637 | 2012-07-20 16:08:42 |
| R76.htm | 12576 | 2012-07-20 16:08:42 |
| R77.htm | 1135497 | 2012-07-20 16:08:42 |
| R8.htm | 125360 | 2012-07-20 16:08:42 |
| R9.htm | 135341 | 2012-07-20 16:08:42 |
| report.css | 2721 | 2012-07-20 16:08:42 |
| Show.js | 6423 | 2012-07-20 16:08:42 |