condition mean min max 4 h after light 2.68619 2.14841 3.22397 8 h after light 2.6902299999999997 2.65663 2.72383 12 h after light 3.389085 3.31422 3.46395 4 h after dark 3.7617566666666664 3.62396 4.00909 8 h after dark 3.6622999999999997 3.12689 4.09836 12 h after dark 3.3369733333333333 3.24907 3.42454