condition mean min max 0 h after light 147.079 145.843 148.315 4 h after light 134.4225 121.435 147.41 8 h after light 71.81945 66.7343 76.9046 4 h after dark 14.17405 10.5857 17.7624 8 h after dark 86.13595000000001 84.5734 87.6985 12 h after dark 147.3515 143.555 151.148