Rank	Countries/Territories	Count	Percent
1	United States	334	31.8%
2	China	319	30.4%
3	Germany	141	13.4%
4	Japan	94	9%
5	India	27	2.6%
6	Korea, Republic of	22	2.1%
7	France	13	1.2%
8	Switzerland	11	1%
9	Czech Republic	10	1%
10	Australia	9	0.9%
11	Netherlands	8	0.8%
12	Canada	6	0.6%
13	Taiwan	6	0.6%
14	Singapore	6	0.6%
15	Israel	5	0.5%
16	United Kingdom	4	0.4%
17	Viet Nam	4	0.4%
18	Hong Kong	4	0.4%
19	New Zealand	3	0.3%
20	Nicaragua	3	0.3%
21	Philippines	2	0.2%
22	Russia	2	0.2%
23	Ireland	2	0.2%
24	Colombia	2	0.2%
25	Cyprus	2	0.2%
26	Egypt	2	0.2%
27	Argentina	2	0.2%
28	South Africa	2	0.2%
29	Kazakhstan	1	0.1%
30	Ukraine	1	0.1%
31	Estonia	1	0.1%
32	Hungary	1	0.1%