condition mean min max 0 h after light 10.614764999999998 9.68193 11.5476 2 h after light 7.98786 7.74192 8.2338 4 h after light 9.308924999999999 9.05905 9.5588 8 h after light 11.948695 8.99179 14.9056 12 h after light 21.3594 20.2177 22.5011 2 h after dark 20.934199999999997 20.4271 21.4413 4 h after dark 17.6217 16.0672 19.1762 8 h after dark 16.204050000000002 14.7288 17.6793 12 h after dark 12.1735 12.1194 12.2276