condition mean min max 4 h after light 69.80225 65.7507 73.8538 8 h after light 60.03975 58.2033 61.8762 12 h after light 51.54645 49.1863 53.9066 4 h after dark 77.233 76.5794 77.8866 8 h after dark 89.3846 89.257 89.5122 12 h after dark 101.21610000000001 95.9042 106.528