Rank	Countries/Territories	Count	Percent
1	United States	370	32.5%
2	China	340	29.8%
3	Germany	123	10.8%
4	Japan	53	4.6%
5	Canada	24	2.1%
6	Korea, Republic of	21	1.8%
7	Portugal	18	1.6%
8	India	18	1.6%
9	Brazil	17	1.5%
10	Norway	12	1.1%
11	Switzerland	12	1.1%
12	Hong Kong	11	1%
13	Czech Republic	11	1%
14	Turkey	10	0.9%
15	Netherlands	10	0.9%
16	Singapore	9	0.8%
17	Argentina	8	0.7%
18	Australia	8	0.7%
19	Cyprus	7	0.6%
20	Taiwan	7	0.6%
21	Iran, Islamic Republic of	6	0.5%
22	United Kingdom	5	0.4%
23	Egypt	4	0.4%
24	Peru	4	0.4%
25	Israel	4	0.4%
26	Italy	3	0.3%
27	Belgium	3	0.3%
28	Ethiopia	2	0.2%
29	Hungary	2	0.2%
30	Mexico	2	0.2%
31	Slovenia	2	0.2%
32	South Africa	2	0.2%
33	Spain	1	0.1%
34	Serbia	1	0.1%
35	Morocco	1	0.1%
36	Luxembourg	1	0.1%
37	Macao	1	0.1%
38	Ireland	1	0.1%
39	France	1	0.1%
40	Georgia	1	0.1%
41	Austria	1	0.1%
42	Colombia	1	0.1%
43	Tanzania, United Republic of	1	0.1%
44	Ukraine	1	0.1%