Stock Market Returns and Chinese Zodiac

Is there a relation between Chinese astrology and stock market performance?
The Economist's chart published in 2012 might shed some light on the question.

According to the chart, between 1900 and 2011, the Rabbit years have seen the biggest increase in America's Dow Jones Industrial Average price index whereas the goat has the worst record.

Well, for the Year of the Monkey ... not so bad ... at least a positive return :)