"It is estimated that there will be approximately 15,000,000 spectators over the 21 days, spending an average of three euros per day for a whopping total of 45,000,000 million euros or $63,000,000 million U.S. dollars. The result will be a significant economic impact for all of the participating countries, cities, towns and boroughs. It is no wonder that over 200 towns in France alone apply to the ASO every year for a spot on the famed Le Tour route." (Quoted from article)