求翻译：国民收入从1929年的810亿美元减少到了1930年的不到680亿美元，然后飞流直下，降至1931年的530亿美元，并在1932年以410亿美元触底。相应的，在这一时间跨度里，国家的财富估值从3,650亿美元下降到了2,390亿美元，这一下降，代表了不动产、资本和商品的贬值。当然，全国有很多实体工厂，都在闲置和荒废中生锈。这三年，总共有85,000家企业破产，留下了45亿美元的债务，5,000家银行停止支付。900万储蓄账户被一笔勾销，工资损失维持在260亿美元以上。是什么意思？

National income from 1929 to 810 billion dollars in 1930 to less than $ 68 billion, and waterfalls, down to $ 53 billion in 1931, and $ 41 billion in 1932, bottoming out. Accordingly, in this time span, the country's wealth valuation dropped from $ 365 billion to 2,390 billion U.S. dollars, this dec

Per capita income will rise from $81 billion in 1929 has been reduced to less than 68 billion dollars in 1930, and then fly-in 1931, fell to $53 billion and $41 billion in 1932 to the bottom. Accordingly, in this time span, the wealth of a nation, valuation from 3 to 65 billion dollars, down to 2 39

National income was reduced from $ 81 billion in 1929 to 1930, years of less than us $ 68 billion, and then feiliu down, falling to $ 53 billion in 1931 and in 1932 for $ 41 billion hit bottom. Accordingly, in this time span, the national wealth of valuations from $ 365 billion down to $ 239 billion