How many letters, phone calls and emails are sent globally every day?

Question

and how have the proportions changed over the last 30 years? (I would expect it started with letters as #1, then phone, now maybe email?) Any numbers for daily volumes gratefully received.

Answer 1

idk about those

but I do know that over 100 billion text messages are sent and recieved every day

Answer 2

why do you want to know lol well to start you off there are 6 billion people in the world ....