Rank	Countries/Territories	Count	Percent
1	United States	412	34.3%
2	China	406	33.8%
3	Germany	147	12.2%
4	Japan	26	2.2%
5	Canada	23	1.9%
6	United Kingdom	20	1.7%
7	India	19	1.6%
8	Netherlands	16	1.3%
9	France	14	1.2%
10	Russia	12	1%
11	Singapore	11	0.9%
12	Taiwan	11	0.9%
13	Kenya	11	0.9%
14	Korea, Republic of	11	0.9%
15	Australia	8	0.7%
16	Switzerland	7	0.6%
17	Ukraine	6	0.5%
18	Ireland	5	0.4%
19	Greece	4	0.3%
20	Cyprus	4	0.3%
21	Iran, Islamic Republic of	3	0.2%
22	Norway	3	0.2%
23	Romania	2	0.2%
24	Latvia	2	0.2%
25	Malaysia	2	0.2%
26	Sweden	2	0.2%
27	Viet Nam	2	0.2%
28	Indonesia	2	0.2%
29	Brazil	2	0.2%
30	Argentina	2	0.2%
31	Algeria	1	0.1%
32	Bangladesh	1	0.1%
33	Egypt	1	0.1%
34	Hong Kong	1	0.1%
35	Italy	1	0.1%
36	Nigeria	1	0.1%