Rank	Countries/Territories	Count	Percent
1	United States	362	33.3%
2	China	340	31.2%
3	Germany	113	10.4%
4	Singapore	62	5.7%
5	Japan	44	4%
6	Canada	24	2.2%
7	France	16	1.5%
8	India	14	1.3%
9	Switzerland	14	1.3%
10	Korea, Republic of	11	1%
11	Australia	9	0.8%
12	Netherlands	8	0.7%
13	Ireland	7	0.6%
14	Cyprus	6	0.6%
15	Iran, Islamic Republic of	5	0.5%
16	Pakistan	5	0.5%
17	Poland	4	0.4%
18	Russia	4	0.4%
19	Egypt	4	0.4%
20	United Kingdom	4	0.4%
21	Argentina	3	0.3%
22	Bulgaria	3	0.3%
23	Ukraine	3	0.3%
24	Sweden	3	0.3%
25	Turkey	2	0.2%
26	Portugal	2	0.2%
27	Romania	2	0.2%
28	Malaysia	2	0.2%
29	Iraq	2	0.2%
30	Hong Kong	2	0.2%
31	Ghana	1	0.1%
32	Austria	1	0.1%
33	Ethiopia	1	0.1%
34	Colombia	1	0.1%
35	Mexico	1	0.1%
36	Mongolia	1	0.1%
37	Uruguay	1	0.1%
38	Viet Nam	1	0.1%