Rank	Countries/Territories	Count	Percent
1	United States	296	37.6%
2	China	254	32.3%
3	Germany	63	8%
4	France	60	7.6%
5	Singapore	10	1.3%
6	Netherlands	8	1%
7	Canada	7	0.9%
8	Iran, Islamic Republic of	6	0.8%
9	Argentina	5	0.6%
10	Kazakhstan	5	0.6%
11	Spain	5	0.6%
12	Slovenia	4	0.5%
13	Japan	4	0.5%
14	Colombia	4	0.5%
15	Cyprus	4	0.5%
16	Egypt	4	0.5%
17	Azerbaijan	3	0.4%
18	Belgium	3	0.4%
19	Ireland	3	0.4%
20	Albania	3	0.4%
21	Malaysia	3	0.4%
22	Switzerland	3	0.4%
23	Turkey	3	0.4%
24	Ukraine	3	0.4%
25	United Kingdom	3	0.4%
26	Mexico	2	0.3%
27	Norway	2	0.3%
28	Portugal	2	0.3%
29	Romania	2	0.3%
30	Russia	2	0.3%
31	Greece	2	0.3%
32	Brazil	2	0.3%
33	Australia	2	0.3%
34	Hungary	1	0.1%
35	India	1	0.1%
36	Korea, Republic of	1	0.1%
37	Latvia	1	0.1%
38	Mongolia	1	0.1%