Through the careful examination of historical data, it is possible to empirically affirm the existence of several anomalies in the stock market, even though there is not always a clear theory or explanation as to why they exist. One such anomaly that is relevant for the current year is the tendency for Japanese and U.S. stock markets to perform strongly in years for which the final digit is the number five (e.g. 2005, 1995, 1985).