Rank	Countries/Territories	Count	Percent
1	China	270	29.1%
2	United States	247	26.6%
3	Germany	143	15.4%
4	Korea, Republic of	30	3.2%
5	Japan	23	2.5%
6	India	22	2.4%
7	Singapore	19	2%
8	Canada	17	1.8%
9	Russia	15	1.6%
10	France	14	1.5%
11	Austria	14	1.5%
12	Hong Kong	13	1.4%
13	Italy	13	1.4%
14	Latvia	12	1.3%
15	Israel	10	1.1%
16	Brazil	10	1.1%
17	Turkey	8	0.9%
18	Taiwan	6	0.6%
19	Netherlands	6	0.6%
20	Spain	5	0.5%
21	United Kingdom	5	0.5%
22	Greece	4	0.4%
23	Ireland	3	0.3%
24	Bulgaria	3	0.3%
25	Iran, Islamic Republic of	2	0.2%
26	Lithuania	2	0.2%
27	Poland	2	0.2%
28	Norway	1	0.1%
29	Oman	1	0.1%
30	Pakistan	1	0.1%
31	Uganda	1	0.1%
32	Thailand	1	0.1%
33	Bahrain	1	0.1%
34	Bangladesh	1	0.1%
35	Denmark	1	0.1%
36	Viet Nam	1	0.1%