condition mean min max 4 h after light 5.134475 4.63334 5.63561 8 h after light 5.94684 4.9795 6.91418 12 h after light 10.8194 10.7547 10.8841 4 h after dark 15.18165 14.975 15.3883 8 h after dark 12.074850000000001 11.4135 12.7362 12 h after dark 9.831225 9.08185 10.5806