XD!
you might not know how they get those numbers.
So no, I'm afraid your information is tainted. 60% of marraiges end in divorce not death. Women file for divorce in 80% of cases. Marriage is a poor investment for men and a safety netfor women. Divorce is detrimental to men and a golden parachute with cash and prizes for women.
I know you don't believe me, and I hope things stay good for you but the fact is, if you are really still happy after 20 years YOU are the minority.