Rank	Countries/Territories	Count	Percent
1	United States	364	34.4%
2	China	326	30.8%
3	Germany	70	6.6%
4	United Kingdom	43	4.1%
5	Spain	32	3%
6	Japan	25	2.4%
7	Russia	24	2.3%
8	Sweden	18	1.7%
9	France	16	1.5%
10	Iran, Islamic Republic of	13	1.2%
11	Brazil	13	1.2%
12	Cyprus	12	1.1%
13	Singapore	12	1.1%
14	Netherlands	11	1%
15	Romania	10	0.9%
16	Taiwan	8	0.8%
17		8	0.8%
18	Belgium	6	0.6%
19	Canada	4	0.4%
20	Ireland	4	0.4%
21	Mexico	4	0.4%
22	Ukraine	3	0.3%
23	Syrian Arab Republic	3	0.3%
24	Italy	3	0.3%
25	Korea, Republic of	3	0.3%
26	Hong Kong	3	0.3%
27	Austria	3	0.3%
28	Argentina	2	0.2%
29	Australia	2	0.2%
30	Denmark	2	0.2%
31	Malaysia	2	0.2%
32	Oman	2	0.2%
33	Poland	2	0.2%
34	South Africa	2	0.2%
35	Mongolia	1	0.1%
36	Switzerland	1	0.1%
37	Hungary	1	0.1%
38	India	1	0.1%