Rank	Countries/Territories	Count	Percent
1	United States	176	34.3%
2	China	104	20.3%
3	Germany	43	8.4%
4	India	26	5.1%
5	Bulgaria	25	4.9%
6	France	16	3.1%
7	Netherlands	14	2.7%
8	Turkey	14	2.7%
9	Slovakia	8	1.6%
10	Greece	8	1.6%
11	Pakistan	6	1.2%
12	Canada	5	1%
13	Ireland	5	1%
14	Nigeria	5	1%
15	Viet Nam	5	1%
16	United Kingdom	4	0.8%
17	Philippines	4	0.8%
18	Poland	4	0.8%
19	Saudi Arabia	3	0.6%
20	Indonesia	3	0.6%
21	Korea, Republic of	3	0.6%
22	Latvia	3	0.6%
23	Australia	3	0.6%
24	Cyprus	3	0.6%
25	Hong Kong	2	0.4%
26	Colombia	2	0.4%
27	Singapore	2	0.4%
28	Romania	2	0.4%
29	Morocco	2	0.4%
30	Ukraine	2	0.4%
31	New Zealand	1	0.2%
32	Russia	1	0.2%
33	Palestine, State of	1	0.2%
34	South Africa	1	0.2%
35	Switzerland	1	0.2%
36	Taiwan	1	0.2%
37	Thailand	1	0.2%
38	Malaysia	1	0.2%
39	Mexico	1	0.2%
40	Italy	1	0.2%
41	Japan	1	0.2%