condition mean min max 4 h after light 2.1838550000000003 1.98211 2.3856 8 h after light 1.675105 1.43215 1.91806 12 h after light 1.41431 1.15062 1.678 4 h after dark 1.58894 1.46264 1.71524 8 h after dark 2.20392 2.07414 2.3337 12 h after dark 2.7201500000000003 2.50916 2.93114