Rank	Countries/Territories	Count	Percent
1	United States	536	39.3%
2	China	515	37.8%
3	Germany	127	9.3%
4	France	23	1.7%
5	Iran, Islamic Republic of	19	1.4%
6	Canada	16	1.2%
7	Cyprus	15	1.1%
8	Netherlands	13	1%
9	Japan	12	0.9%
10	United Kingdom	11	0.8%
11	Russia	11	0.8%
12	India	11	0.8%
13	Australia	9	0.7%
14	Spain	8	0.6%
15	Singapore	5	0.4%
16	Norway	3	0.2%
17	Chile	3	0.2%
18	Greece	3	0.2%
19	Hong Kong	2	0.1%
20	Ireland	2	0.1%
21	Italy	2	0.1%
22	Brazil	2	0.1%
23	Denmark	2	0.1%
24	Egypt	2	0.1%
25	Switzerland	2	0.1%
26	Taiwan	1	0.1%
27	Ukraine	1	0.1%
28	Panama	1	0.1%
29	Romania	1	0.1%
30	Kuwait	1	0.1%
31	Latvia	1	0.1%
32	Mongolia	1	0.1%
33	Argentina	1	0.1%
34	Belgium	1	0.1%