gh-138213: Make csv.reader up to 2x faster
#164801
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| 4m 46s | |
| 17m 59s | |
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| 11m 41s | |
| 11m 10s | |
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| 5m 53s | |
| 17m 24s | |
| 11m 14s | |
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| 26m 14s | |
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| 4m 1s | |
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| 13m 30s | |
| 11m 18s | |
| 1m 55s | |
| 5m 10s | |
| 1m 49s | |
| 5s | |
| 5h 31m 20s |