~40 trillion Business Emails Sent/Received per Year

I was reading the latest Email Statistics Report from the Radicati Group this morning and even though most of the numbers are universally known, it is still completely mind blowing how many emails we send and receive.
974 million Business Emails Accounts will send and receive ~40 trillion emails in 2014.
That’s a staggering amount and this shows just how reliant the overall knowledge economy and along with that, the individual interaction worker, depend on email.
The below two charts are from the executive summary of the report.