condition mean min max 4 h after light 196.56212449999998 187.616672 205.507577 8 h after light 218.4715235 207.837062 229.105985 12 h after light 186.155134 186.155134 186.155134 4 h after dark 173.996959 170.922615 177.071303 8 h after dark 174.65893 159.005977 190.311883 12 h after dark 174.553178 174.553178 174.553178