condition mean min max 0 h after light 0.7727475 0.66168 0.883815 4 h after light 1.1127605 0.652381 1.57314 8 h after light 0.8886054999999999 0.654631 1.12258 4 h after dark 1.627635 1.52232 1.73295 8 h after dark 2.18048 1.97149 2.38947 12 h after dark 0.651196 0.440528 0.861864