Germans the best tippers while traveling, Italians worst, survey says

More than two-thirds of Germans said they always tip when leaving a restaurant or hotel on vacation, compared with 57 percent of the 1,600 Americans questioned...80 percent of Americans were sometimes uncertain about how much gratuity to leave, with three-quarters checking travel guides for advice.

Nonetheless, both Americans and Germans were more likely to leave a tip than any of the six other countries surveyed, which included Russia, Brazil, France, Britain, Spain and Italy.

From the release:
Germans – 69%
Americans – 57%
Russians – 53%
Brazilians – 40%
French – 39%
Brits – 39%
Spanish – 36%
Italians – 23%