Rank	Countries/Territories	Count	Percent
1	United States	466	39.7%
2	China	237	20.2%
3	Germany	74	6.3%
4	Japan	40	3.4%
5	Korea, Republic of	36	3.1%
6	Netherlands	30	2.6%
7	India	26	2.2%
8	Canada	25	2.1%
9	Mexico	22	1.9%
10	Singapore	16	1.4%
11	South Africa	16	1.4%
12	Italy	14	1.2%
13	Brazil	13	1.1%
14	Ukraine	13	1.1%
15	Turkey	11	0.9%
16	United Kingdom	9	0.8%
17	Kazakhstan	9	0.8%
18	Greece	8	0.7%
19	Spain	8	0.7%
20	Russia	7	0.6%
21	Iran, Islamic Republic of	7	0.6%
22	Bulgaria	6	0.5%
23	Ireland	5	0.4%
24	Moldova, Republic of	5	0.4%
25	Pakistan	5	0.4%
26	Taiwan	5	0.4%
27	Thailand	5	0.4%
28	Peru	4	0.3%
29	Portugal	4	0.3%
30	Cyprus	4	0.3%
31	Argentina	4	0.3%
32	Colombia	3	0.3%
33	France	3	0.3%
34	Romania	3	0.3%
35	Myanmar	3	0.3%
36	Hong Kong	3	0.3%
37	Switzerland	3	0.3%
38	Norway	2	0.2%
39	Sudan	2	0.2%
40	Nepal	2	0.2%
41	Lithuania	2	0.2%
42	Georgia	2	0.2%
43	Honduras	2	0.2%
44	Belgium	2	0.2%
45	Australia	2	0.2%
46	Austria	1	0.1%
47	Israel	1	0.1%
48	Indonesia	1	0.1%
49	Malaysia	1	0.1%
50	Nigeria	1	0.1%