? |
* | US | Metric |
80 - 100 | 14 | 0.75-0.50 |
40 - 80 | 13 | 0.85 |
30 - 60 | 12 | 1.00 |
30 - 40 | 11 | 1.10 |
20 - 30 | 10 | 1.30 |
20 | 9 | 1.40 |
10 | 7, 8 | 1.60-1.70 |
5*** | D** | 3.00** |
3*** | E** | 3.50** |
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