In 2011 less than half of one percent, or 0.0038, of California's red grape tonnage was Sangiovese, sandwiched between Mission and Carnelian.  That was a surprise; we thought Mission was displaced 150 years ago when vitus vinifera arrived in California.  Today only about two-thirds of the state's small Sangiovese crop was estate grown, like ours, with wineries purchasing the rest from independent growers.  And only 3% of the statewide Sangiovese total came from  Napa Valley, less than Napa's overall 4% average.  It's a wonder you can find any to drink.