condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.121604 0.0 0.242154 9 h after light 0.15341 0.0 0.291636 12 h after light 0.051122675 0.0 0.112035 3 h after dark 0.0 0.0 0.0 6 h after dark 0.04743033333333333 0.0 0.142291 9 h after dark 0.044907 0.0 0.134721 12 h after dark 0.0551375 0.0 0.110275