condition mean min max 4 h after light 0.7584295 0.707942 0.808917 8 h after light 0.33453595 0.0478079 0.621264 12 h after light 0.40940699999999997 0.244732 0.574082 4 h after dark 0.8972873333333333 0.20768 1.74157 8 h after dark 0.34489766666666666 0.198525 0.469677 12 h after dark 0.29321769566666667 0.0 0.879248