What is a 'vintage chart'?

What is a 'vintage chart'?

Dennis Overstreet (Wine Expert) gives expert video advice on: Why is a wine's vintage so important?; What makes a good vintage?; How are modern growing techniques affecting wine? and more...

Vintage chart is basically that overall, most wineries, chateaus domain, had a very good growing season. And they say that this was a very good growing season. And thus it is compiled that this is a vintage that is an excellent stellar vintage, this is an above vintage, this is an average vintage.