condition mean min max 4 h after light 10.3385025 10.020441 10.656564 8 h after light 11.404053 10.312043 12.496063 12 h after light 9.678847999999999 9.457624 9.900072 4 h after dark 10.465002 10.074982 10.855022 8 h after dark 10.525564 10.312043 10.739085 12 h after dark 9.000761 9.000761 9.000761