Assuming an average daily consumption of 2000 kcal per person per day and a population of 330 million, that’s around half a decade’s worth of food from this stockpile alone.
And that 330 million number is likely to decrease significantly after a nuclear exchange sufficient to cause nuclear winter, so half a decade is likely a lower bound.
And that 330 million number is likely to decrease significantly after a nuclear exchange sufficient to cause nuclear winter, so half a decade is likely a lower bound.