condition mean min max 4 h after light 137.17571249999997 128.143533 146.207892 8 h after light 170.170415 161.185696 179.155134 12 h after light 164.6819685 161.185696 168.178241 4 h after dark 188.633792 164.296796 212.970788 8 h after dark 170.6038205 153.894605 187.313036 12 h after dark 138.329687 138.329687 138.329687