Rank	Countries/Territories	Count	Percent
1	United States	487	45.8%
2	China	193	18.1%
3	Germany	179	16.8%
4	Japan	35	3.3%
5	Canada	19	1.8%
6	Australia	18	1.7%
7	Russia	18	1.7%
8	India	13	1.2%
9	Israel	12	1.1%
10	Netherlands	11	1%
11	United Kingdom	10	0.9%
12	Singapore	6	0.6%
13	Taiwan	6	0.6%
14	Hong Kong	6	0.6%
15	Ireland	5	0.5%
16	France	5	0.5%
17	Egypt	4	0.4%
18	Sweden	4	0.4%
19	Spain	3	0.3%
20	Argentina	3	0.3%
21	Iran, Islamic Republic of	3	0.3%
22	Italy	2	0.2%
23	Chile	2	0.2%
24	South Africa	2	0.2%
25	Poland	2	0.2%
26	Romania	2	0.2%
27	New Zealand	2	0.2%
28	Korea, Republic of	2	0.2%
29	Ukraine	2	0.2%
30	Lithuania	1	0.1%
31	Luxembourg	1	0.1%
32	Mexico	1	0.1%
33	Norway	1	0.1%
34	Peru	1	0.1%
35	Thailand	1	0.1%
36	Cyprus	1	0.1%
37	Greece	1	0.1%