condition mean min max 4 h after light 16.9602 16.7251 17.1953 8 h after light 11.82065 11.5421 12.0992 12 h after light 13.9514 12.4149 15.4879 4 h after dark 13.113066666666667 11.8288 15.324 8 h after dark 11.58917 9.90341 13.0943 12 h after dark 12.317633333333333 10.9463 13.4531