condition mean min max 4 h after light 10.23644 8.46548 12.0074 8 h after light 12.27135 11.4862 13.0565 12 h after light 15.577950000000001 14.7736 16.3823 4 h after dark 16.0172 13.4594 18.575 8 h after dark 12.5273 12.4208 12.6338 12 h after dark 9.94979 9.90994 9.98964