Rank	Countries/Territories	Count	Percent
1	United States	324	34%
2	China	247	25.9%
3	Germany	102	10.7%
4	Russia	39	4.1%
5	Canada	28	2.9%
6	United Kingdom	23	2.4%
7	India	19	2%
8	Netherlands	15	1.6%
9	Japan	14	1.5%
10	Ireland	13	1.4%
11	Singapore	12	1.3%
12	France	12	1.3%
13	Korea, Republic of	11	1.2%
14	Hong Kong	8	0.8%
15	Cyprus	6	0.6%
16	Argentina	6	0.6%
17	Australia	6	0.6%
18	Ghana	5	0.5%
19	Malaysia	5	0.5%
20	Switzerland	5	0.5%
21	Portugal	5	0.5%
22	Uganda	5	0.5%
23	Israel	4	0.4%
24	South Africa	4	0.4%
25	Hungary	4	0.4%
26	Indonesia	3	0.3%
27	Iran, Islamic Republic of	3	0.3%
28	Mexico	3	0.3%
29	Italy	3	0.3%
30	New Zealand	3	0.3%
31	Sweden	3	0.3%
32	Ukraine	2	0.2%
33	Romania	2	0.2%
34	Slovakia	2	0.2%
35	Saudi Arabia	1	0.1%
36	Spain	1	0.1%
37	Taiwan	1	0.1%
38	Qatar	1	0.1%
39	Norway	1	0.1%
40	Georgia	1	0.1%