Rank	Countries/Territories	Count	Percent
1	United States	511	35.4%
2	China	428	29.6%
3	Germany	109	7.5%
4	Singapore	81	5.6%
5	Japan	57	3.9%
6	France	41	2.8%
7	Russia	37	2.6%
8	Iran, Islamic Republic of	22	1.5%
9	Hong Kong	20	1.4%
10	Canada	19	1.3%
11	Korea, Republic of	19	1.3%
12	Netherlands	11	0.8%
13	Thailand	10	0.7%
14	United Kingdom	7	0.5%
15	Switzerland	6	0.4%
16	South Africa	6	0.4%
17	India	6	0.4%
18	Cyprus	6	0.4%
19	Australia	6	0.4%
20	Sweden	5	0.3%
21	Bulgaria	4	0.3%
22	Ireland	4	0.3%
23	Argentina	3	0.2%
24	Norway	3	0.2%
25	Ukraine	3	0.2%
26	Nigeria	2	0.1%
27	Macao	2	0.1%
28	Malaysia	2	0.1%
29	Spain	2	0.1%
30	Italy	2	0.1%
31	Egypt	2	0.1%
32	Ghana	2	0.1%
33	Israel	1	0.1%
34	Ethiopia	1	0.1%
35	Ecuador	1	0.1%
36	Belgium	1	0.1%
37	Turkey	1	0.1%
38	Mexico	1	0.1%
39	Portugal	1	0.1%