I have started to mine on ypool but i still dont get the "shares" thing even after reading the faq.

I have noticed that in my cmd window the shares starts at 0/0 and builds up. Now i have about 48/47 or something

Does this mean i get more share the longer I mine? I have noticed it resets to 0 again if i close the window and start it again? So to get as much as possible you should never close it?