condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.05608 0.0 0.11216 8 h after dark 0.02770275 0.0 0.0554055 12 h after dark 0.0 0.0 0.0