condition mean min max 4 h after light 5.629681333333333 5.491612 5.7784 8 h after light 2.834374333333333 1.5372649999999999 4.252603 12 h after light 2.115037 1.580075 3.014196 16 h after light 3.6822156666666666 2.62626 4.632805 4 h after dark 7.493653 4.720251 9.943313999999999 8 h after dark 10.220936 6.025405999999999 15.839960000000001