condition mean min max 4 h after light 8.74495 8.71116 8.77874 8 h after light 7.256695000000001 6.79394 7.71945 12 h after light 8.729435 7.81167 9.6472 4 h after dark 11.134644999999999 9.67319 12.5961 8 h after dark 13.099350000000001 12.6303 13.5684 12 h after dark 11.74595 11.2672 12.2247