The majority of Americans seem to appreciate good service at restaurants.  A new survey conducted by Michelin and Harris has found that the average American tips 18 percent of the bill when they receive good service while dining out.

Overall, 70 percent say they usually leave between 15 to 20 percent for their server.  Only one in ten say they tip more than 20 percent.  Younger people, however, tend to be less generous.

Thirty percent of those between 18 and 34 admit to leaving less than 15 percent, even when the service was good -- compared to only 16 percent of those 35 or older.

Regionally, the Northeast is home to the best tippers, followed by the West, the Midwest and the South.