condition mean min max 0 h after light 2.98251 2.95676 3.00826 4 h after light 2.6751300000000002 2.57424 2.77602 8 h after light 4.043794999999999 4.04315 4.04444 4 h after dark 3.7135499999999997 3.30196 4.12514 8 h after dark 4.097975 4.08078 4.11517 12 h after dark 3.191435 2.83416 3.54871