Rank	Countries/Territories	Count	Percent
1	United States	387	35.2%
2	China	326	29.7%
3	Germany	155	14.1%
4	Taiwan	56	5.1%
5	Iran, Islamic Republic of	30	2.7%
6	Japan	19	1.7%
7	Netherlands	17	1.5%
8	Russia	15	1.4%
9	Singapore	12	1.1%
10	United Kingdom	10	0.9%
11	Canada	9	0.8%
12	Australia	8	0.7%
13	Cyprus	7	0.6%
14	Chile	5	0.5%
15	Argentina	5	0.5%
16	France	5	0.5%
17	Korea, Republic of	4	0.4%
18	Czech Republic	4	0.4%
19	Saudi Arabia	4	0.4%
20	Bangladesh	3	0.3%
21	Hong Kong	3	0.3%
22	India	2	0.2%
23	Latvia	2	0.2%
24	Ireland	2	0.2%
25	Mongolia	2	0.2%
26	Switzerland	2	0.2%
27	Ukraine	1	0.1%
28	Portugal	1	0.1%
29	Sweden	1	0.1%
30	Mexico	1	0.1%
31	Colombia	1	0.1%