how many users are using Google + today?

"We had a great quarter,” said Larry Page, CEO of Google. “Revenue was up 33% year on year and our quarterly revenue was just short of $10 billion. Google+ is now open to everyone and we just passed the 40 million user mark. People are flocking into Google+ at an incredible rate and we are just getting started!"
Larry page
i blogged this because i couldn't find any information about how many people are on google + for now? and i saw a lot of wrong articles  some on wiki and some says google + have 9999trillion people :|.
i would have wiki account but not yet due to my country policy of blocking useful sites.
anyway for more info https://plus.google.com/106189723444098348646/posts/EanXz8fLwDh .
thanks a lot to Mr Matthew Levine he is the one who gave me the information .