What was the best champagne year during the last century?

Question

I need to know what year gave the best champagne from the year 1900 to the year 2000...

Answer 1

as you will see on the chart, 1971 was the best that still might be drinkable.  Hard to tell before that.

Answer 2

I know very little about the subject, but I have heard great thins about 1986...

Take that with a grain of salt.