condition mean min max 4 h after light 21.627473000000002 19.252653 24.002293 8 h after light 19.7273025 19.671765 19.78284 12 h after light 19.917965000000002 19.671765 20.164165 4 h after dark 19.711532 17.585155 21.837909 8 h after dark 20.559962 18.856929 22.262995 12 h after dark 20.613976 20.613976 20.613976