condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.020221966666666667 0.0 0.0606659 8 h after dark 0.0 0.0 0.0 12 h after dark 0.034006 0.0 0.102018