Approximately what is the median total retail sales, in trillions of dollars, for the years shown? (Note: 1 billion=$$10^9$$ and 1 trillion=$$10^{12}$$)
Approximately what is the median total retail sales, in trillions of dollars, for the years shown? (Note: 1 billion=$$10^9$$ and 1 trillion=$$10^{12}$$)
