condition mean min max 4 h after light 1083.889205 1024.807497 1142.970913 8 h after light 1436.7705179999998 1228.693595 1644.847441 12 h after light 1627.4144605000001 1366.087652 1888.741269 4 h after dark 2751.8618775 1692.834707 3810.889048 8 h after dark 2036.3711154999999 1741.001288 2331.740943 12 h after dark 2722.770518 2722.770518 2722.770518