translation.en: Growth was maybe 0.1, 0.2, 0.3 percent, but very slow growth of population and output per capita, whereas the rate of return on capital of course was not zero percent.
translation.zh: 大部分时间增长率都接近0。 增长率可能为0.1%,0.2%,0.3% 人口增长缓慢 人均产出 资本回报率 当然不是0%。