Rank	Countries/Territories	Count	Percent
1	United States	416	40.1%
2	China	217	20.9%
3	Germany	136	13.1%
4	Iran, Islamic Republic of	33	3.2%
5	Netherlands	21	2%
6	Japan	21	2%
7	United Kingdom	20	1.9%
8	Canada	19	1.8%
9	Russia	18	1.7%
10	Singapore	15	1.4%
11	Chile	13	1.3%
12	Spain	11	1.1%
13	Romania	10	1%
14	Korea, Republic of	9	0.9%
15	Italy	9	0.9%
16	Viet Nam	8	0.8%
17	Cyprus	6	0.6%
18	India	5	0.5%
19	Saudi Arabia	5	0.5%
20	Portugal	4	0.4%
21	Malaysia	4	0.4%
22	Czech Republic	4	0.4%
23	France	3	0.3%
24	Sweden	3	0.3%
25	Taiwan	3	0.3%
26	Philippines	2	0.2%
27	Norway	2	0.2%
28	Hong Kong	2	0.2%
29	Indonesia	2	0.2%
30	Egypt	2	0.2%
31	Colombia	2	0.2%
32	Croatia	2	0.2%
33	Australia	2	0.2%
34	Belgium	2	0.2%
35	Turkey	2	0.2%
36	Greece	1	0.1%
37	Palestine, State of	1	0.1%
38	Peru	1	0.1%
39	Poland	1	0.1%
40	Thailand	1	0.1%