Rank	Countries/Territories	Count	Percent
1	United States	268	29.5%
2	China	236	25.9%
3	Germany	92	10.1%
4	France	50	5.5%
5	Russia	35	3.8%
6	Canada	28	3.1%
7	India	22	2.4%
8	Switzerland	20	2.2%
9	Korea, Republic of	20	2.2%
10		16	1.8%
11	Ukraine	16	1.8%
12	Japan	9	1%
13	Singapore	9	1%
14	Morocco	8	0.9%
15	Netherlands	7	0.8%
16	United Kingdom	7	0.8%
17	Iran, Islamic Republic of	6	0.7%
18	Cyprus	6	0.7%
19	Australia	5	0.5%
20	Romania	5	0.5%
21	Kenya	4	0.4%
22	Indonesia	4	0.4%
23	Algeria	3	0.3%
24	Malaysia	3	0.3%
25	Mexico	3	0.3%
26	Viet Nam	3	0.3%
27	Venezuela, Bolivarian Republic of	2	0.2%
28	Norway	2	0.2%
29	Portugal	2	0.2%
30	Puerto Rico	2	0.2%
31	South Africa	2	0.2%
32	Sweden	2	0.2%
33	Ethiopia	2	0.2%
34	Greece	2	0.2%
35	Ireland	2	0.2%
36	Israel	2	0.2%
37	Italy	1	0.1%
38	Hong Kong	1	0.1%
39	Thailand	1	0.1%
40	Turkey	1	0.1%
41	Nepal	1	0.1%