生男孩是生女？Boy or girl?

I wish to share this piece of information that I got from a colleague of mine. The chart is about prediction of your baby's gender according to the date of pregnancy. I'm not sure about how scientific is it nor how reliable is it, but it's worth a share to everyone who might try it out and prove that is it useful or otherwise.
The vertical side is the age of wife (or wives if you happen to have a few of them) while the horizontal side is the beginning month of pregnancy. Pink boxes stands for girl and blue stands for boy. For sure this chart is not suitable for "old-mothers" and "extremely- young-mother". Sorry, out of range...

Try it out, you might find it interesting!

Click image to enlarge