condition mean min max 4 h after light 173.749752 160.30898 187.190524 8 h after light 243.18573700000002 231.746332 254.625142 12 h after light 212.144138 209.795318 214.492958 4 h after dark 200.976824 193.58569 208.367958 8 h after dark 180.638145 170.746149 190.530141 12 h after dark 134.94596 134.94596 134.94596