Ever used the Chinese Gender Prediction Chart?

While browsing on the internet I came across the Chinese gender chart. It was accurate for everyone that I know  that has had/going to have a baby. I was just wondering if anyone had tried it and if it worked. (If you haven't tried it but you want to, all you have to  do is search 'Chinese gender predictor' on google, go to images, click on one of the images, find your age and then month of conception to see if baby is going to be a boy or girl.) it works for babies that have already been born too.