vintage chart is a tool to give you an overall result
from a harvest. A vintage chart will not tell you about the
exceptionally great (or bad) results from a particular producer.
Match up the region along the left side of the vintage chart
with the vintage along the top shaded row. At the common point
of the vintage chart, you'll find a rating (based on a 100
point scale) that gives a relative rating for the wines from
that region for that vintage.