Rank	Countries/Territories	Count	Percent
1	United States	551	46.3%
2	China	298	25.1%
3	Germany	134	11.3%
4	Canada	27	2.3%
5	Japan	27	2.3%
6	India	21	1.8%
7	Turkey	17	1.4%
8	France	16	1.3%
9	Netherlands	14	1.2%
10	Russia	10	0.8%
11	Korea, Republic of	10	0.8%
12	Singapore	8	0.7%
13	Nigeria	6	0.5%
14	Hong Kong	5	0.4%
15	Cyprus	5	0.4%
16	Ireland	4	0.3%
17	Portugal	4	0.3%
18	Sweden	4	0.3%
19	Taiwan	4	0.3%
20	Iran, Islamic Republic of	3	0.3%
21	Thailand	2	0.2%
22	United Kingdom	2	0.2%
23	Uzbekistan	2	0.2%
24	Italy	2	0.2%
25	Argentina	2	0.2%
26	Australia	2	0.2%
27	Egypt	2	0.2%
28	Ghana	1	0.1%
29	Austria	1	0.1%
30	Czech Republic	1	0.1%
31	Indonesia	1	0.1%
32	South Africa	1	0.1%
33	Norway	1	0.1%
34	Poland	1	0.1%