Rank	Countries/Territories	Count	Percent
1	United States	312	32%
2	China	303	31%
3	Germany	96	9.8%
4	Korea, Republic of	62	6.4%
5	Japan	19	1.9%
6	Iran, Islamic Republic of	18	1.8%
7		17	1.7%
8	Netherlands	17	1.7%
9	Russia	15	1.5%
10	Switzerland	14	1.4%
11	Norway	11	1.1%
12	Brazil	10	1%
13	Canada	10	1%
14	India	10	1%
15	France	8	0.8%
16	Cyprus	7	0.7%
17	Italy	6	0.6%
18	Hong Kong	5	0.5%
19	Australia	5	0.5%
20	Singapore	5	0.5%
21	United Kingdom	5	0.5%
22	Turkey	3	0.3%
23	Austria	3	0.3%
24	Greece	2	0.2%
25	Slovakia	2	0.2%
26	Oman	2	0.2%
27	Romania	1	0.1%
28	South Africa	1	0.1%
29	Saudi Arabia	1	0.1%
30	Ukraine	1	0.1%
31	Taiwan	1	0.1%
32	Tunisia	1	0.1%
33	Viet Nam	1	0.1%
34	Ireland	1	0.1%
35	Argentina	1	0.1%