2003年，纽约证券交易所中上市股票80%的交易额使用人工交易，到了2009年底就降低到25%。
In 2003 the New York Stock Exchange (NYSE) handled about 80% of trading volume of its listed stocks, but by the end of 2009, that share had fallen to 25% (see chart).
巩固纽约证券交易所的交易额总计5.5十亿股份。
Consolidated trading volume on the New York Stock Exchange came to 5.5 billion shares.
债券市场显而易见的吸引力是它的规模：价值约10 兆美元的公司债券在2003年进行了交易，这一数字比纽约证券交易所的交易额高四分之一。
The obvious attraction of the bond market is its size: some $10 trillion-worth of corporate bonds traded in 2003, a quarter more than the trading volume on the NYSE.
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