20172016201520142013
United States60.0%63.3%63.3%63.7%63.2%
Other Americas3.4%3.4%3.3%3.2%2.9%
Europe23.4%21.2%21.4%21.2%20.8%
Asia13.3%12.1%12.0%11.9%13.1%

Notes:Asia includes South Korea, Japan, China, Hong Kong, Indonesia, Malaysia, the Philippines, Singapore, Taiwan, Thailand and Australia