condition mean min max 0 h after light 4.56034 4.15783 4.96285 4 h after light 8.329425 7.23935 9.4195 8 h after light 8.10716 7.61441 8.59991 4 h after dark 4.96428 3.86631 6.06225 8 h after dark 6.277205 6.19418 6.36023 12 h after dark 4.475275 4.24059 4.70996