Rank	Countries/Territories	Count	Percent
1	United States	298	32.5%
2	China	271	29.6%
3	Germany	65	7.1%
4	Japan	59	6.4%
5	United Kingdom	37	4%
6	Netherlands	24	2.6%
7	Iran, Islamic Republic of	22	2.4%
8	France	19	2.1%
9	Singapore	17	1.9%
10	Russia	16	1.7%
11	Switzerland	13	1.4%
12	Korea, Republic of	11	1.2%
13	Canada	9	1%
14	Australia	8	0.9%
15	Hong Kong	7	0.8%
16	Malaysia	6	0.7%
17	Italy	4	0.4%
18	Cyprus	4	0.4%
19	Belgium	3	0.3%
20	India	3	0.3%
21	Poland	3	0.3%
22	Spain	2	0.2%
23	Saudi Arabia	2	0.2%
24	Norway	2	0.2%
25	Luxembourg	2	0.2%
26	Brazil	2	0.2%
27	Argentina	2	0.2%
28	Hungary	2	0.2%
29	Ireland	1	0.1%
30	Thailand	1	0.1%
31	Ukraine	1	0.1%