Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950123-11-044864-index-headers.html | 2011-05-04 18:13:23 | |
| 0000950123-11-044864-index.html | 2011-05-04 18:13:23 | |
| 0000950123-11-044864.txt | 2011-05-04 18:13:23 | |
 0000950123-11-044864-xbrl.zip | 60244 | 2011-05-04 18:13:23 |
| defnref.xml | 26078 | 2011-05-04 18:13:23 |
| FilingSummary.xml | 13467 | 2011-05-04 18:13:23 |
| Financial_Report.xls | 361222 | 2011-05-04 18:13:23 |
| g26727e10vq.htm | 671837 | 2011-05-04 18:13:23 |
| g26727exv31w1.htm | 6673 | 2011-05-04 18:13:23 |
| g26727exv31w2.htm | 6677 | 2011-05-04 18:13:23 |
| g26727exv32w1.htm | 2941 | 2011-05-04 18:13:23 |
| g26727exv32w2.htm | 2948 | 2011-05-04 18:13:23 |
| pra-20110331.xml | 449781 | 2011-05-04 18:13:23 |
| pra-20110331.xsd | 15207 | 2011-05-04 18:13:23 |
| pra-20110331_cal.xml | 41365 | 2011-05-04 18:13:23 |
| pra-20110331_def.xml | 9822 | 2011-05-04 18:13:23 |
| pra-20110331_lab.xml | 141745 | 2011-05-04 18:13:23 |
| pra-20110331_pre.xml | 92485 | 2011-05-04 18:13:23 |
| R1.xml | 49502 | 2011-05-04 18:13:23 |
| R10.xml | 209699 | 2011-05-04 18:13:23 |
| R11.xml | 155580 | 2011-05-04 18:13:23 |
| R12.xml | 10382 | 2011-05-04 18:13:23 |
| R13.xml | 8734 | 2011-05-04 18:13:23 |
| R14.xml | 10093 | 2011-05-04 18:13:23 |
| R15.xml | 10554 | 2011-05-04 18:13:23 |
| R16.xml | 17181 | 2011-05-04 18:13:23 |
| R17.xml | 16058 | 2011-05-04 18:13:23 |
| R18.xml | 8157 | 2011-05-04 18:13:23 |
| R19.xml | 10872 | 2011-05-04 18:13:23 |
| R2.xml | 113959 | 2011-05-04 18:13:23 |
| R20.xml | 10996 | 2011-05-04 18:13:23 |
| R3.xml | 26586 | 2011-05-04 18:13:23 |
| R4.xml | 78224 | 2011-05-04 18:13:23 |
| R5.xml | 96603 | 2011-05-04 18:13:23 |
| R6.xml | 17254 | 2011-05-04 18:13:23 |
| R7.xml | 102439 | 2011-05-04 18:13:23 |
| R8.xml | 14382 | 2011-05-04 18:13:23 |
| R9.xml | 16064 | 2011-05-04 18:13:23 |