Rank	Countries/Territories	Count	Percent
1	United States	634	37.3%
2	China	478	28.1%
3	Germany	164	9.6%
4	France	122	7.2%
5	Japan	55	3.2%
6	Canada	36	2.1%
7	Norway	32	1.9%
8	Netherlands	25	1.5%
9	United Kingdom	19	1.1%
10	Taiwan	15	0.9%
11	Korea, Republic of	13	0.8%
12	Australia	11	0.6%
13	Ukraine	11	0.6%
14	Singapore	11	0.6%
15		10	0.6%
16	Italy	9	0.5%
17	Sweden	8	0.5%
18	Cyprus	7	0.4%
19	Portugal	6	0.4%
20	Iran, Islamic Republic of	5	0.3%
21	Bangladesh	4	0.2%
22	Russia	4	0.2%
23	Brazil	3	0.2%
24	Ireland	3	0.2%
25	Hong Kong	2	0.1%
26	Bosnia and Herzegovina	2	0.1%
27	Argentina	2	0.1%
28	South Africa	2	0.1%
29	Spain	2	0.1%
30	Malaysia	2	0.1%
31	Turkey	2	0.1%
32	Palestine, State of	1	0.1%
33	India	1	0.1%
34	Latvia	1	0.1%