Rank	Countries/Territories	Count	Percent
1	United States	338	35.1%
2	China	284	29.5%
3	Germany	132	13.7%
4	Japan	56	5.8%
5	France	40	4.1%
6	Ukraine	13	1.3%
7	Spain	12	1.2%
8	Singapore	11	1.1%
9	Netherlands	9	0.9%
10	Switzerland	8	0.8%
11	Hong Kong	7	0.7%
12	Cyprus	6	0.6%
13	Austria	6	0.6%
14	Canada	5	0.5%
15	Australia	4	0.4%
16	Latvia	4	0.4%
17	Taiwan	3	0.3%
18	Russia	3	0.3%
19	New Zealand	2	0.2%
20	Tunisia	2	0.2%
21	United Kingdom	2	0.2%
22	Lithuania	2	0.2%
23	Mexico	2	0.2%
24	Korea, Republic of	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Italy	2	0.2%
27	Egypt	2	0.2%
28	El Salvador	2	0.2%
29	Denmark	1	0.1%
30	Greece	1	0.1%
31	Turkey	1	0.1%