Rank	Countries/Territories	Count	Percent
1	United States	318	33.1%
2	China	288	30%
3	Germany	65	6.8%
4	Japan	60	6.2%
5	United Kingdom	37	3.9%
6	Netherlands	24	2.5%
7	Iran, Islamic Republic of	22	2.3%
8	France	20	2.1%
9	Russia	17	1.8%
10	Singapore	17	1.8%
11	Switzerland	13	1.4%
12	Korea, Republic of	11	1.1%
13	Canada	9	0.9%
14	Australia	8	0.8%
15	Hong Kong	7	0.7%
16	Malaysia	6	0.6%
17	Italy	4	0.4%
18	India	4	0.4%
19	Cyprus	4	0.4%
20	Belgium	3	0.3%
21	Poland	3	0.3%
22	Spain	2	0.2%
23	Saudi Arabia	2	0.2%
24	New Zealand	2	0.2%
25	Norway	2	0.2%
26	Brazil	2	0.2%
27	Argentina	2	0.2%
28	Hungary	2	0.2%
29	Luxembourg	2	0.2%
30	Ireland	1	0.1%
31	Peru	1	0.1%
32	Thailand	1	0.1%
33	Ukraine	1	0.1%