The graph shows monthly travel in 2013, the previous year, ten years prior, and twenty years prior. Using the table beneath the graph, total travel in 2013 increased 0.5 percent from last year (2012), 3.9 percent from ten years ago (2003), and 30.8 percent from twenty years ago (1993). Travel increased 25.8 percent from 1993 to 2003.

Note: An archive is available.