condition mean min max 4 h after light 12.81295 12.4956 13.1303 8 h after light 9.316400000000002 9.03428 9.59852 12 h after light 4.30623 3.79931 4.81315 4 h after dark 5.763999999999999 4.81757 6.71043 8 h after dark 3.258235 3.15369 3.36278 12 h after dark 7.105815 7.02876 7.18287