与股市比较：GFD标普500月度总回报指数在1931年4月—1932年3月的一年（大萧条期间）中损失了67.8 % ， 自1990年以来出现过23次年损失超12.5%的情况。
Compare that to the stock market: According to the GFD monthly S&P 500 total return index, an annual loss of 67.8% occurred in the year ending in May 1932, during the Great Depression, and one-year losses have exceeded 12.5% in 23 separate episodes since 1900.