condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0272052 0.0 0.0544104 12 h after light 0.0 0.0 0.0 4 h after dark 0.0298339 0.0 0.0895017 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0