condition mean min max 4 h after light 4813.4 4813.4 4813.4 8 h after light 5431.1 4219.5 6642.7 12 h after light 5873.15 4965.0 6781.3 4 h after dark 6077.55 5211.6 6943.5 8 h after dark 6065.25 5833.8 6296.7 12 h after dark 6250.549999999999 5675.2 6825.9