condition mean min max 4 h after light 79.32077000000001 76.825511 81.816029 8 h after light 86.62155100000001 81.598956 91.644146 12 h after light 88.6382555 80.505978 96.770533 4 h after dark 109.84208149999999 89.948781 129.735382 8 h after dark 107.97842349999999 106.114847 109.842 12 h after dark 92.455075 92.455075 92.455075