Rank	Countries/Territories	Count	Percent
1	United States	398	38.3%
2	China	342	32.9%
3	Germany	123	11.8%
4	Japan	28	2.7%
5	Netherlands	19	1.8%
6	Australia	19	1.8%
7	Russia	19	1.8%
8	United Kingdom	18	1.7%
9	Canada	12	1.2%
10	Korea, Republic of	8	0.8%
11	France	7	0.7%
12	Singapore	5	0.5%
13	India	5	0.5%
14	Cyprus	5	0.5%
15	Nigeria	3	0.3%
16	Norway	2	0.2%
17	Philippines	2	0.2%
18	Latvia	2	0.2%
19	Denmark	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Argentina	2	0.2%
22	Belgium	2	0.2%
23	Turkey	2	0.2%
24	Uganda	2	0.2%
25	Ukraine	2	0.2%
26	Saudi Arabia	1	0.1%
27	Serbia	1	0.1%
28	South Africa	1	0.1%
29	Sweden	1	0.1%
30	Switzerland	1	0.1%
31	Viet Nam	1	0.1%
32	Bulgaria	1	0.1%
33	Morocco	1	0.1%
34	Romania	1	0.1%