condition mean min max 0 h after light 97.14665 95.6398 98.6535 4 h after light 86.77275 71.1355 102.41 8 h after light 95.10995 84.7889 105.431 4 h after dark 122.366 109.132 135.6 8 h after dark 111.5615 109.644 113.479 12 h after dark 81.8651 64.4772 99.253