condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.032562933333333335 0.0 0.0976888 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0270687 0.0 0.0812061 9 h after dark 0.0 0.0 0.0 12 h after dark 0.028279 0.0 0.056558