Only when you do.
"For so many years of existence i just now had the time to visit here" is not correct grammar "For many years of existence,I now have the time to visit here."
twice
5 times
100 times
Times are here: http://www.cedarpoint.com/public/visit/schedule/index.cfm
He never visit U.S.
I think 9 times.
3 times in the book
Her Highness has visited 10 times
He visits as many times as is needed. He is on his way, get to bed quick!
5 times
4000000