condition mean min max 0 h after light 168.81400000000002 165.96 171.668 4 h after light 29.35255 24.5729 34.1322 8 h after light 18.7444 18.0871 19.4017 4 h after dark 57.7536 46.4075 69.0997 8 h after dark 41.282650000000004 39.2759 43.2894 12 h after dark 109.39695 90.3899 128.404