condition mean min max 4 h after light 74.8878045 73.618989 76.15662 8 h after light 84.8356775 75.934044 93.737311 12 h after light 70.850124 69.618576 72.081672 4 h after dark 71.913813 67.160825 76.666801 8 h after dark 72.2044995 70.79001 73.618989 12 h after dark 47.381629 47.381629 47.381629