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|---|---|---|
 0001104659-20-056536-index-headers.html | 2020-05-05 08:12:10 | |
| 0001104659-20-056536-index.html | 2020-05-05 08:12:10 | |
| 0001104659-20-056536.txt | 2020-05-05 08:12:10 | |
 0001104659-20-056536-xbrl.zip | 53234 | 2020-05-05 08:12:10 |
| a20-15141_5485bpos.htm | 83576 | 2020-05-05 08:12:10 |
 BarChart1.png | 27460 | 2020-05-05 08:12:10 |
 BarChart2.png | 28955 | 2020-05-05 08:12:10 |
| ck0000774412-20200430.xml | 63857 | 2020-05-05 08:12:10 |
| ck0000774412-20200430.xsd | 9670 | 2020-05-05 08:12:10 |
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| ck0000774412-20200430_def.xml | 248979 | 2020-05-05 08:12:10 |
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| R13.htm | 161255 | 2020-05-05 08:12:10 |
| R14.htm | 3932 | 2020-05-05 08:12:10 |
| R2.htm | 92911 | 2020-05-05 08:12:10 |
| R7.htm | 154317 | 2020-05-05 08:12:10 |
| R8.htm | 99385 | 2020-05-05 08:12:10 |
| report.css | 2767 | 2020-05-05 08:12:10 |
| Show.js | 1085 | 2020-05-05 08:12:10 |