condition mean min max 2 h after light 0.17062746666666667 0.0444615 0.332976 6 h after light 0.17123335 0.0537691 0.297385 10 h after light 0.12039903333333334 0.0364367 0.17736 14 h after light 0.230188 0.0617808 0.487462 18 h after light 0.19750145 0.0574716 0.360813 2 h after dark 0.0754332 0.0390425 0.114853