condition mean min max 0 h after light 0.19085 0.0 0.3817 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.31966 0.312071 0.327249 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.084073 0.0 0.168146 8 h after dark 0.1983855 0.0 0.396771 12 h after dark 0.0 0.0 0.0