condition mean min max 0 h after light 13.5685 13.1815 13.9555 4 h after light 9.138645 8.50131 9.77598 8 h after light 8.21817 7.96357 8.47277 4 h after dark 16.5219 13.804 19.2398 8 h after dark 17.94895 16.4688 19.4291 12 h after dark 13.620750000000001 13.3892 13.8523