Rank	Countries/Territories	Count	Percent
1	United States	340	33.9%
2	China	253	25.2%
3	Germany	108	10.8%
4	Russia	52	5.2%
5	Canada	28	2.8%
6	United Kingdom	23	2.3%
7	India	19	1.9%
8	Japan	16	1.6%
9	Netherlands	15	1.5%
10	Korea, Republic of	14	1.4%
11	Ireland	13	1.3%
12	France	13	1.3%
13	Singapore	12	1.2%
14	Hong Kong	8	0.8%
15	Cyprus	7	0.7%
16	Argentina	6	0.6%
17	Australia	6	0.6%
18	Ghana	5	0.5%
19	Switzerland	5	0.5%
20	Malaysia	5	0.5%
21	Portugal	5	0.5%
22	Uganda	5	0.5%
23	South Africa	4	0.4%
24	Hungary	4	0.4%
25	Israel	4	0.4%
26	Jordan	4	0.4%
27	Italy	3	0.3%
28	Indonesia	3	0.3%
29	Iran, Islamic Republic of	3	0.3%
30	Mexico	3	0.3%
31	New Zealand	3	0.3%
32	Sweden	3	0.3%
33	Ukraine	2	0.2%
34	Romania	2	0.2%
35	Slovakia	2	0.2%
36	Saudi Arabia	1	0.1%
37	Spain	1	0.1%
38	Taiwan	1	0.1%
39	Qatar	1	0.1%
40	Norway	1	0.1%
41	Georgia	1	0.1%