How many wine producers there are in Italy?

There are about 800000 wine producers in Italy, but this number includes wine firms (grapes are grown and trasformed into wine in the same place), and wine company (they produce wine but they don't grow grapes).
Every producer usually has 5-6 kinds of wine (e.g. white, red, rosè and different kinds of grape), so if you try to multiply the producer by kinds of wine, you will find how many different wines there are in Italy.
This one of reasons why you never find the same aroma in a bottle of two different producers.