condition mean min max 0 h after light 21.31725 20.0401 22.5944 4 h after light 30.12455 30.0802 30.1689 8 h after light 34.8727 31.5134 38.232 4 h after dark 33.4249 29.1084 37.7414 8 h after dark 28.7929 25.6104 31.9754 12 h after dark 24.28065 19.5111 29.0502