Rank	Countries/Territories	Count	Percent
1	United States	324	33.8%
2	China	311	32.4%
3	Germany	87	9.1%
4	Korea, Republic of	27	2.8%
5	Japan	24	2.5%
6	France	23	2.4%
7	India	17	1.8%
8	Czech Republic	14	1.5%
9	Sweden	10	1%
10	Canada	9	0.9%
11	Netherlands	8	0.8%
12	Ireland	7	0.7%
13	Singapore	6	0.6%
14	Australia	6	0.6%
15	Hong Kong	6	0.6%
16	United Kingdom	6	0.6%
17	Taiwan	6	0.6%
18	Turkey	5	0.5%
19	Cyprus	5	0.5%
20	Italy	5	0.5%
21	Iran, Islamic Republic of	4	0.4%
22	Spain	4	0.4%
23	Saudi Arabia	4	0.4%
24	Poland	4	0.4%
25	Belgium	4	0.4%
26	Austria	3	0.3%
27	Colombia	3	0.3%
28	Norway	3	0.3%
29	Ukraine	3	0.3%
30	Mongolia	2	0.2%
31	Iraq	2	0.2%
32	Portugal	2	0.2%
33	Switzerland	2	0.2%
34	Chile	2	0.2%
35	Bangladesh	2	0.2%
36	Denmark	2	0.2%
37	Greece	2	0.2%
38	Argentina	1	0.1%
39	Brazil	1	0.1%
40	Romania	1	0.1%
41	Pakistan	1	0.1%
42	Thailand	1	0.1%