Rank	Countries/Territories	Count	Percent
1	United States	535	38.1%
2	China	406	28.9%
3	Germany	93	6.6%
4	Korea, Republic of	61	4.3%
5	Singapore	48	3.4%
6	Japan	36	2.6%
7	France	32	2.3%
8	United Kingdom	25	1.8%
9	Netherlands	22	1.6%
10	Australia	12	0.9%
11	Canada	11	0.8%
12	Mexico	11	0.8%
13	Argentina	10	0.7%
14	Cyprus	10	0.7%
15	Ireland	9	0.6%
16	Taiwan	8	0.6%
17	Ukraine	6	0.4%
18	Hong Kong	6	0.4%
19	Indonesia	6	0.4%
20	Iran, Islamic Republic of	6	0.4%
21	India	5	0.4%
22	South Africa	5	0.4%
23	Russia	5	0.4%
24	Libya	4	0.3%
25	Belgium	4	0.3%
26	Viet Nam	4	0.3%
27	Tanzania, United Republic of	3	0.2%
28	Spain	2	0.1%
29	Sri Lanka	2	0.1%
30	Switzerland	2	0.1%
31	Malaysia	2	0.1%
32	Norway	2	0.1%
33	Brazil	2	0.1%
34	Finland	2	0.1%
35	Israel	2	0.1%
36	Lithuania	1	0.1%
37	Ecuador	1	0.1%
38	Pakistan	1	0.1%
39	Portugal	1	0.1%
40	Romania	1	0.1%
41	Thailand	1	0.1%