the year of the GOLDEN pig

2007 was the year of the pig, according to the chinese zodiac.
and it just so happens that last year was the year of the "golden pig".
im not quite sure why its golden, or what makes it golden---but i do know that this only happens
every 600 years apparently , if you have a child born in the year
of the golden pig---you are set for life because that pig is going to bring you wealth and prosperity.
so, im so glad that Lucille was born on the year of the pig. cause we're gonna be rich!!!

if you google "year of the golden pig" youll find all kinds of funny articles about how chinese people didnt
need to manufacture birh control for this year and so forth.
everyone in china wanted a baby in 2007

Id like to know more on this subject if anyone knows anything.
i would like to know why the year is a golden pig, and all about where this theory came from in
chinese folklore.