condition mean min max 0 h after light 1.144965 0.0 2.28993 4 h after light 0.0 0.0 0.0 8 h after light 1.16343 0.0 2.32686 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.558265 0.0 1.11653