The Chinese horoscope is divided into cycles of 12 years to know what your sign is very simple, for the year of birth.
And here I leave the relationship over the years:
RAT - 1900-1912-1924-1936-1948-1960-1972-1984-1996
GALLO-1909-1921-1933-1945 - 1957-1969-1981 -1993
As you can see, the years go every twelve, so now you can calculate that the Chinese zodiac animal you really are and if sentíis little curious, I will say that I am Cabra.
luck and be happy