condition mean min max 0 h after light 0.1251479 0.0833328 0.166963 4 h after light 1.170875 1.0681 1.27365 8 h after light 0.8799675 0.742005 1.01793 4 h after dark 0.36878 0.2465 0.49106 8 h after dark 0.371747 0.164145 0.579349 12 h after dark 0.16553555 0.0814081 0.249663