n | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
R.I | 0 | 0.2 | .6 | 1.1 | 1.11 | 1.26 | 1.3 | 1.4 | 1.45 | 1.5 | 1.55 | 1.58 | 1.6 | 1.67 | 1.7 |