condition mean min max 3 h after light 0.762816 0.528677 0.97389 6 h after light 0.7799696666666667 0.642417 0.905607 9 h after light 1.1536373333333334 0.823342 1.39179 12 h after light 2.4830200000000002 2.27252 2.76249 3 h after dark 2.26113 1.84569 2.62268 6 h after dark 1.9121233333333332 1.65716 2.23038 9 h after dark 0.8922920000000001 0.783184 1.03269 12 h after dark 0.33039966666666665 0.315121 0.358534