Assuming an average flow rate of about 1.5 million homes per year, you can eyeball the stock deficit by comparing the mass above and below the zero on the following graph.
Since its owners also possess Pulenta Estate, a vineyard, they agreed to launch a new line of mass-market wines for export, erasing the family's trade deficit.
In modern day Ryder Cup history no team has come back from that deficit on the final day, with the exception of the U.S. team in 1999 at Brookline, Mass.