condition mean min max 4 h after light 0.0135378 0.0 0.0270756 8 h after light 0.0 0.0 0.0 12 h after light 0.0306615 0.018866 0.042457 4 h after dark 0.008388566666666666 0.0 0.0251657 8 h after dark 0.010261133333333334 0.0 0.0307834 12 h after dark 0.016546 0.0 0.049638