condition mean min max 4 h after light 168.326626 164.09079 172.562462 8 h after light 226.9942385 207.46686 246.521617 12 h after light 149.225068 107.770519 190.679617 4 h after dark 140.5278285 134.136786 146.918871 8 h after dark 125.635355 112.05018 139.22053 12 h after dark 126.498776 126.498776 126.498776