Rank	Countries/Territories	Count	Percent
1	United States	472	37.3%
2	China	387	30.6%
3	Germany	97	7.7%
4	Singapore	87	6.9%
5	Korea, Republic of	51	4%
6	Russia	20	1.6%
7	Japan	19	1.5%
8	United Kingdom	17	1.3%
9	Netherlands	8	0.6%
10	Norway	8	0.6%
11	Iran, Islamic Republic of	7	0.6%
12	Canada	7	0.6%
13	Hong Kong	6	0.5%
14	India	6	0.5%
15	Israel	6	0.5%
16	Pakistan	5	0.4%
17	France	5	0.4%
18	Sweden	5	0.4%
19	Brazil	5	0.4%
20	Australia	4	0.3%
21	Ireland	4	0.3%
22	Cyprus	4	0.3%
23	Taiwan	4	0.3%
24	Spain	4	0.3%
25	Ukraine	4	0.3%
26	Thailand	3	0.2%
27	Costa Rica	3	0.2%
28	Austria	2	0.2%
29	Argentina	2	0.2%
30	Slovenia	2	0.2%
31	Romania	2	0.2%
32	Nigeria	2	0.2%
33	Malaysia	1	0.1%
34	Italy	1	0.1%
35	Jordan	1	0.1%
36	South Africa	1	0.1%
37	Colombia	1	0.1%
38	Egypt	1	0.1%
39	Ghana	1	0.1%