The two are among the biggest contributors to investment-banking revenues: in debt underwriting alone, they are responsible for 30% of dollar volumes, according to Thomson Financial Services, a data collector.

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The data collector based in Chicago has a hedge fund index that shows hedge fund returns rose by 20.4%, the best year for the index since 1999, when funds returned 31.29%.

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They were collected primarily through police reports in 2007, death certificates and the number of fatalities registered by the Not-in-Traffic Surveillance system, a virtual data collector of details regarding nontraffic crashes nationwide.

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It was issued by the official data-collector China Internet Network Information Center (Cnnic).

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