Rank	Countries/Territories	Count	Percent
1	United States	329	34.2%
2	China	222	23.1%
3	Germany	123	12.8%
4	India	25	2.6%
5	France	23	2.4%
6	Japan	21	2.2%
7	Korea, Republic of	18	1.9%
8	Netherlands	18	1.9%
9	Norway	14	1.5%
10	Turkey	13	1.4%
11	Singapore	12	1.2%
12	Iran, Islamic Republic of	11	1.1%
13	Hong Kong	11	1.1%
14	Belgium	11	1.1%
15	United Kingdom	10	1%
16	Ukraine	9	0.9%
17	Denmark	9	0.9%
18	Spain	7	0.7%
19	Taiwan	7	0.7%
20	Italy	7	0.7%
21	Australia	6	0.6%
22	Viet Nam	6	0.6%
23	Canada	5	0.5%
24	Mexico	5	0.5%
25	Saudi Arabia	4	0.4%
26	Ireland	4	0.4%
27	Egypt	4	0.4%
28	Czech Republic	3	0.3%
29	Colombia	3	0.3%
30	Indonesia	3	0.3%
31	Pakistan	2	0.2%
32	Palestine, State of	2	0.2%
33	Cyprus	2	0.2%
34	Brazil	2	0.2%
35	Greece	2	0.2%
36	Dominican Republic	1	0.1%
37	Georgia	1	0.1%
38	Albania	1	0.1%
39	Peru	1	0.1%
40	Portugal	1	0.1%
41	Russia	1	0.1%
42	Thailand	1	0.1%
43	Syrian Arab Republic	1	0.1%