condition mean min max 0 h after light 5.395905 4.99357 5.79824 2 h after light 4.832789999999999 4.80092 4.86466 4 h after light 4.872185 4.34494 5.39943 8 h after light 5.9384049999999995 5.46409 6.41272 12 h after light 7.721785000000001 6.26025 9.18332 2 h after dark 7.602869999999999 7.25531 7.95043 4 h after dark 8.39313 7.59104 9.19522 8 h after dark 8.66045 7.78293 9.53797 12 h after dark 6.829935 5.02882 8.63105