Rank	Countries/Territories	Count	Percent
1	United States	491	38.3%
2	China	267	20.8%
3	Korea, Republic of	108	8.4%
4	Germany	94	7.3%
5	Netherlands	32	2.5%
6	Japan	29	2.3%
7	Slovakia	26	2%
8	Canada	21	1.6%
9	France	20	1.6%
10	India	18	1.4%
11	United Kingdom	18	1.4%
12	Taiwan	16	1.2%
13	Spain	13	1%
14	Brazil	13	1%
15	Switzerland	12	0.9%
16	Australia	11	0.9%
17	Iran, Islamic Republic of	8	0.6%
18	Ireland	7	0.5%
19	Italy	6	0.5%
20	Viet Nam	6	0.5%
21	Austria	5	0.4%
22	Singapore	5	0.4%
23	Sweden	5	0.4%
24	New Zealand	4	0.3%
25	Romania	4	0.3%
26	Russia	4	0.3%
27	Hong Kong	4	0.3%
28	Iceland	4	0.3%
29	Belgium	3	0.2%
30	Cyprus	3	0.2%
31	Norway	3	0.2%
32	Ukraine	3	0.2%
33	Thailand	2	0.2%
34	Turkey	2	0.2%
35	Oman	2	0.2%
36	Saudi Arabia	2	0.2%
37	Lithuania	2	0.2%
38	Czech Republic	2	0.2%
39	Israel	2	0.2%
40	Iraq	1	0.1%
41	Argentina	1	0.1%
42	Morocco	1	0.1%
43	Nigeria	1	0.1%
44	Poland	1	0.1%