Rank	Countries/Territories	Count	Percent
1	United States	344	49.1%
2	China	172	24.5%
3	Germany	92	13.1%
4	France	20	2.9%
5	Singapore	15	2.1%
6	Japan	13	1.9%
7	Canada	8	1.1%
8	Netherlands	6	0.9%
9	Taiwan	6	0.9%
10	United Kingdom	4	0.6%
11	Argentina	3	0.4%
12	Australia	2	0.3%
13	Bangladesh	2	0.3%
14	Brazil	2	0.3%
15	Cyprus	2	0.3%
16	Jordan	2	0.3%
17	Korea, Republic of	2	0.3%
18	Viet Nam	2	0.3%
19	Hong Kong	1	0.1%
20	Iran, Islamic Republic of	1	0.1%
21	Qatar	1	0.1%
22	South Africa	1	0.1%