condition mean min max 4 h after light 0.04072235 0.0 0.0814447 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.08831095 0.0355749 0.141047 12 h after dark 0.0 0.0 0.0