Rank	Countries/Territories	Count	Percent
1	United States	297	35.5%
2	China	241	28.8%
3	Germany	125	14.9%
4	Japan	43	5.1%
5	France	29	3.5%
6	Ukraine	13	1.6%
7	Spain	12	1.4%
8	Singapore	11	1.3%
9	Netherlands	9	1.1%
10	Hong Kong	7	0.8%
11	Austria	6	0.7%
12	Cyprus	5	0.6%
13	Canada	4	0.5%
14	Australia	4	0.5%
15	Latvia	4	0.5%
16	Russia	3	0.4%
17	Taiwan	3	0.4%
18	Tunisia	2	0.2%
19	New Zealand	2	0.2%
20	United Kingdom	2	0.2%
21	Lithuania	2	0.2%
22	Mexico	2	0.2%
23	Korea, Republic of	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Egypt	2	0.2%
26	El Salvador	2	0.2%
27	Denmark	1	0.1%
28	Greece	1	0.1%
29	Turkey	1	0.1%