condition mean min max 4 h after light 44.3 44.3 44.3 8 h after light 39.1 18.7 59.5 12 h after light 46.550000000000004 13.2 79.9 4 h after dark 98.69999999999999 97.8 99.6 8 h after dark 43.050000000000004 7.9 78.2 12 h after dark 58.650000000000006 40.9 76.4