condition mean min max 0 h after light 7.427555 5.35835 9.49676 2 h after light 8.70427 7.72449 9.68405 4 h after light 6.34673 5.12431 7.56915 8 h after light 7.782195 6.45395 9.11044 12 h after light 51.18495 49.6032 52.7667 2 h after dark 22.15305 16.1459 28.1602 4 h after dark 19.1281 19.0929 19.1633 8 h after dark 8.223 8.01138 8.43462 12 h after dark 3.3900449999999998 3.15293 3.62716