condition mean min max 4 h after light 15.078622 15.078622 15.078622 8 h after light 14.908064 13.437555 16.378573 12 h after light 14.785702500000001 12.704567 16.866838 4 h after dark 16.520546500000002 15.587691 17.453402 8 h after dark 14.5502735 14.124075 14.976472 12 h after dark 16.642381 16.642381 16.642381