condition mean min max 4 h after light 4.073675 2.96759 5.17976 8 h after light 4.219365 4.14044 4.29829 12 h after light 3.5381299999999998 3.33895 3.73731 4 h after dark 3.6190766666666665 3.13048 4.37367 8 h after dark 3.9416733333333336 3.57883 4.35376 12 h after dark 3.252683333333333 3.18508 3.30745