Rank	Countries/Territories	Count	Percent
1	United States	350	41.9%
2	China	186	22.3%
3	Germany	82	9.8%
4	Japan	28	3.4%
5	Canada	17	2%
6	United Kingdom	17	2%
7	Netherlands	14	1.7%
8	Italy	11	1.3%
9	Russia	11	1.3%
10	Korea, Republic of	9	1.1%
11	Bulgaria	9	1.1%
12	India	9	1.1%
13	Taiwan	7	0.8%
14	Australia	6	0.7%
15	Ireland	6	0.7%
16	Singapore	5	0.6%
17	Cyprus	5	0.6%
18	Czech Republic	4	0.5%
19	France	4	0.5%
20	Iran, Islamic Republic of	4	0.5%
21	Spain	4	0.5%
22	Sweden	3	0.4%
23	Mexico	3	0.4%
24	Norway	3	0.4%
25	Georgia	3	0.4%
26	Romania	3	0.4%
27	Ukraine	2	0.2%
28	Venezuela, Bolivarian Republic of	2	0.2%
29	Viet Nam	2	0.2%
30	Iraq	2	0.2%
31	Greece	2	0.2%
32	Hong Kong	2	0.2%
33	Belgium	2	0.2%
34	Colombia	2	0.2%
35	Oman	2	0.2%
36	Panama	2	0.2%
37	Latvia	2	0.2%
38	Portugal	2	0.2%
39	Switzerland	2	0.2%
40	Malaysia	1	0.1%
41	Philippines	1	0.1%
42	Croatia	1	0.1%
43	Argentina	1	0.1%
44	Bangladesh	1	0.1%
45	Denmark	1	0.1%