condition mean min max 4 h after light 2.43058 2.29939 2.56177 8 h after light 3.2100049999999998 3.15165 3.26836 12 h after light 4.612735 4.23584 4.98963 4 h after dark 6.374035 5.83997 6.9081 8 h after dark 4.228915 4.02133 4.4365 12 h after dark 3.85262 3.82128 3.88396