condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.255812 0.099658 0.411966 8 h after light 0.101447 0.100002 0.102892 4 h after dark 0.04963605 0.0 0.0992721 8 h after dark 0.09955 0.0 0.1991 12 h after dark 0.0 0.0 0.0