Rank	Countries/Territories	Count	Percent
1	United States	549	43.9%
2	China	353	28.2%
3	Germany	100	8%
4	Korea, Republic of	32	2.6%
5	Japan	22	1.8%
6	France	18	1.4%
7	Singapore	16	1.3%
8	Netherlands	14	1.1%
9	Egypt	14	1.1%
10	Canada	13	1%
11	India	13	1%
12	Iran, Islamic Republic of	12	1%
13	United Kingdom	12	1%
14	Russia	9	0.7%
15	Cyprus	7	0.6%
16	Australia	7	0.6%
17	Switzerland	6	0.5%
18	Ireland	5	0.4%
19	Brazil	4	0.3%
20	Spain	4	0.3%
21	Qatar	4	0.3%
22	Hong Kong	4	0.3%
23	Palestine, State of	3	0.2%
24	Argentina	3	0.2%
25	Austria	2	0.2%
26	Finland	2	0.2%
27	Israel	2	0.2%
28	Greece	2	0.2%
29	Mongolia	2	0.2%
30	Malaysia	2	0.2%
31	Thailand	2	0.2%
32	Turkey	2	0.2%
33	Viet Nam	2	0.2%
34	Mexico	1	0.1%
35	Hungary	1	0.1%
36	New Zealand	1	0.1%
37	Nigeria	1	0.1%
38	Norway	1	0.1%
39	Sweden	1	0.1%
40	Saudi Arabia	1	0.1%
41	Czech Republic	1	0.1%
42	Bangladesh	1	0.1%