Rank	Countries/Territories	Count	Percent
1	United States	357	34.4%
2	China	275	26.5%
3	Germany	136	13.1%
4	Japan	22	2.1%
5	Brazil	18	1.7%
6	Netherlands	16	1.5%
7	Norway	15	1.4%
8	Korea, Republic of	15	1.4%
9	Canada	15	1.4%
10	France	15	1.4%
11	Australia	14	1.3%
12	Romania	13	1.3%
13	Singapore	12	1.2%
14	India	11	1.1%
15	United Kingdom	11	1.1%
16	Belgium	9	0.9%
17	Turkey	8	0.8%
18	Switzerland	8	0.8%
19	Poland	7	0.7%
20	Thailand	6	0.6%
21	Cyprus	5	0.5%
22	Spain	4	0.4%
23	Russia	4	0.4%
24	Ireland	3	0.3%
25	Mexico	3	0.3%
26	Denmark	3	0.3%
27	Argentina	3	0.3%
28	Bulgaria	3	0.3%
29	Taiwan	3	0.3%
30	Viet Nam	3	0.3%
31	United Arab Emirates	2	0.2%
32	Iran, Islamic Republic of	2	0.2%
33	Ghana	2	0.2%
34	Hong Kong	2	0.2%
35	Mongolia	2	0.2%
36	Israel	2	0.2%
37	Italy	1	0.1%
38	Sri Lanka	1	0.1%
39	Sweden	1	0.1%
40	Slovakia	1	0.1%
41	Portugal	1	0.1%
42	Czech Republic	1	0.1%
43	Colombia	1	0.1%
44	Bangladesh	1	0.1%
45	Ukraine	1	0.1%