Rank	Countries/Territories	Count	Percent
1	United States	293	34.1%
2	China	254	29.5%
3	Japan	60	7%
4	Germany	51	5.9%
5	Russia	40	4.7%
6	India	31	3.6%
7	Brazil	11	1.3%
8	Canada	9	1%
9	Korea, Republic of	9	1%
10	Hong Kong	7	0.8%
11	United Kingdom	7	0.8%
12	Australia	6	0.7%
13	Malaysia	6	0.7%
14	Senegal	5	0.6%
15	Argentina	5	0.6%
16	Italy	5	0.6%
17	Iran, Islamic Republic of	5	0.6%
18	Taiwan	5	0.6%
19	Ireland	4	0.5%
20	Ecuador	4	0.5%
21	Nigeria	4	0.5%
22	Mexico	4	0.5%
23	South Africa	3	0.3%
24	Spain	2	0.2%
25	Sweden	2	0.2%
26	Syrian Arab Republic	2	0.2%
27	Norway	2	0.2%
28	Mauritius	2	0.2%
29	France	2	0.2%
30	Colombia	2	0.2%
31	Czech Republic	2	0.2%
32	Thailand	2	0.2%
33	Turkey	2	0.2%
34	Yemen	2	0.2%
35	United Arab Emirates	1	0.1%
36	Austria	1	0.1%
37	Bangladesh	1	0.1%
38	Israel	1	0.1%
39	Lithuania	1	0.1%
40	Mongolia	1	0.1%
41	Netherlands	1	0.1%
42	New Zealand	1	0.1%
43	Portugal	1	0.1%
44	Singapore	1	0.1%