Type Coverage OU 12/2014

Type Coverage OU-1825 (12/2014)
+----+----------+----------+---------+---------+---------+
|  # | Coverage | Averaged | Neutral | SE      | x4      |
+----+----------+----------+---------+---------+---------+
|  1 | Ice      | +0.03952 | 69.161% | 27.891% | 11.844% |
|  2 | Dark     | -0.04025 | 78.474% | 17.538% | 0.0000% |
|  3 | Fire     | -0.05645 | 64.578% | 24.648% | 5.5768% |
|  4 | Rock     | -0.07686 | 74.452% | 15.231% | 4.3770% |
|  5 | Fairy    | -0.08146 | 71.259% | 24.438% | 0.2378% |
|  6 | Water    | -0.08876 | 66.579% | 24.703% | 0.1643% |
|  7 | Flying   | -0.12364 | 73.818% | 12.753% | 2.2940% |
|  8 | Ghost    | -0.14138 | 88.278% | 18.875% | 0.0000% |
|  9 | Fighting | -0.34392 | 53.509% | 24.434% | 4.8345% |
| 10 | Grass    | -0.44237 | 54.187% | 20.501% | 1.8902% |
| 11 | Bug      | -0.44348 | 52.404% | 16.244% | 0.7172% |
| 12 | Normal   | -0.44702 | 70.879% | 0.0000% | 0.0000% |
| 13 | Steel    | -0.45012 | 53.843% | 10.282% | 0.6573% |
| 14 | Dragon   | -0.49457 | 70.979% | 10.412% | 0.0000% |
| 15 | Psychic  | -0.65380 | 59.136% | 12.203% | 0.0494% |
| 16 | Electric | -0.70095 | 67.364% | 21.163% | 1.0790% |
| 17 | Ground   | -0.83235 | 73.625% | 25.666% | 5.4201% |
| 18 | Poison   | -1.21630 | 56.921% | 9.8046% | 0.1551% |
+----+----------+----------+---------+---------+---------+

"Averaged" effectiveness is based on the following scale:
+2 = 4x Super Effective
+1 = 2x Super Effective
 0 = Neutral
-1 = 2x Resisted
-2 = 4x Resisted
-5 = No Effect

An averaged effectiveness above 0 suggests the type combo hits more Pokemon in the metagame super effectively (using the best attack) than it is resisted, with weighting applied according to usage. E.g. Being good against a popular Pokemon like Ferrothorn results in greater score increase than being good against a less popular one, like Cradily. The metric for neutral, super effective and 4x SE coverage is the percentage of Pokemon in the metagame that is hit with a damage multiplier of:

Neutral = ×1 and above
SE      = ×2 and above
4x SE   = ×4

++(._.)++