Rank	Countries/Territories	Count	Percent
1	United States	560	35%
2	China	520	32.5%
3	Germany	116	7.2%
4	Italy	47	2.9%
5	Japan	40	2.5%
6	Iran, Islamic Republic of	32	2%
7	France	31	1.9%
8	Taiwan	31	1.9%
9	India	30	1.9%
10	Egypt	21	1.3%
11	Netherlands	19	1.2%
12	United Kingdom	16	1%
13	Switzerland	14	0.9%
14	Canada	13	0.8%
15	Spain	11	0.7%
16	Brazil	8	0.5%
17	Cyprus	8	0.5%
18	Ireland	7	0.4%
19	Russia	7	0.4%
20	Ukraine	6	0.4%
21	Singapore	5	0.3%
22	Norway	5	0.3%
23	Argentina	5	0.3%
24	Denmark	4	0.2%
25	Malaysia	4	0.2%
26	Romania	4	0.2%
27	Latvia	3	0.2%
28	Saudi Arabia	3	0.2%
29	Mexico	3	0.2%
30	Poland	3	0.2%
31	Korea, Republic of	3	0.2%
32	Australia	3	0.2%
33	United Arab Emirates	3	0.2%
34	Turkey	3	0.2%
35	Bangladesh	2	0.1%
36	Chile	2	0.1%
37	Sweden	2	0.1%
38	South Africa	1	0.1%
39	Kuwait	1	0.1%
40	Morocco	1	0.1%
41	Costa Rica	1	0.1%
42	Bulgaria	1	0.1%
43	Ecuador	1	0.1%
44	Thailand	1	0.1%