Rank	Countries/Territories	Count	Percent
1	United States	597	31.8%
2	China	587	31.3%
3	Germany	169	9%
4	Korea, Republic of	90	4.8%
5	Italy	38	2%
6	Canada	32	1.7%
7	Netherlands	27	1.4%
8	Japan	26	1.4%
9	India	25	1.3%
10	Hong Kong	22	1.2%
11	France	18	1%
12	Switzerland	16	0.9%
13	United Kingdom	15	0.8%
14	Bulgaria	15	0.8%
15	Turkey	14	0.7%
16	Taiwan	14	0.7%
17	Poland	14	0.7%
18	Russia	14	0.7%
19	Norway	12	0.6%
20	Singapore	11	0.6%
21	Brazil	8	0.4%
22	Australia	8	0.4%
23	Iran, Islamic Republic of	7	0.4%
24	Thailand	7	0.4%
25	Ireland	6	0.3%
26	Lithuania	6	0.3%
27	Czech Republic	6	0.3%
28	Cyprus	5	0.3%
29	Sweden	5	0.3%
30	Spain	5	0.3%
31	Ukraine	5	0.3%
32	Colombia	4	0.2%
33	Bangladesh	3	0.2%
34	New Zealand	3	0.2%
35	Mexico	3	0.2%
36	Indonesia	3	0.2%
37	Kuwait	3	0.2%
38	Togo	3	0.2%
39	Slovenia	3	0.2%
40	South Africa	3	0.2%
41	Saudi Arabia	2	0.1%
42	Serbia	2	0.1%
43	Pakistan	2	0.1%
44	Portugal	2	0.1%
45	Belgium	2	0.1%
46	Bahrain	1	0.1%
47	Cabo Verde	1	0.1%
48	Cote D'ivoire	1	0.1%
49	Hungary	1	0.1%
50	Greece	1	0.1%
51	Mongolia	1	0.1%
52	Morocco	1	0.1%
53	Nepal	1	0.1%
54	Nigeria	1	0.1%
55	Malaysia	1	0.1%
56	Peru	1	0.1%
57	Sri Lanka	1	0.1%
58	Viet Nam	1	0.1%