Rank	Countries/Territories	Count	Percent
1	United States	328	32.9%
2	China	323	32.4%
3	Germany	87	8.7%
4	Japan	35	3.5%
5	Korea, Republic of	27	2.7%
6	France	26	2.6%
7	India	17	1.7%
8	Czech Republic	14	1.4%
9	Sweden	10	1%
10	Netherlands	9	0.9%
11	Canada	9	0.9%
12	Switzerland	8	0.8%
13	United Kingdom	8	0.8%
14	Ireland	7	0.7%
15	Taiwan	6	0.6%
16	Singapore	6	0.6%
17	Australia	6	0.6%
18	Hong Kong	6	0.6%
19	Cyprus	5	0.5%
20	Italy	5	0.5%
21	Turkey	5	0.5%
22	Saudi Arabia	4	0.4%
23	Iran, Islamic Republic of	4	0.4%
24	Spain	4	0.4%
25	Poland	4	0.4%
26	Belgium	4	0.4%
27	Austria	3	0.3%
28	Colombia	3	0.3%
29	Norway	3	0.3%
30	Ukraine	3	0.3%
31	Mongolia	2	0.2%
32	Iraq	2	0.2%
33	Portugal	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	Thailand	1	0.1%
42	Pakistan	1	0.1%