Rank	Countries/Territories	Count	Percent
1	China	282	30.7%
2	United States	277	30.1%
3	Germany	135	14.7%
4	Korea, Republic of	37	4%
5	Switzerland	27	2.9%
6	Japan	24	2.6%
7	Netherlands	17	1.8%
8	Canada	16	1.7%
9	France	13	1.4%
10	Singapore	11	1.2%
11	India	10	1.1%
12	Mexico	9	1%
13	United Kingdom	9	1%
14	Russia	6	0.7%
15	Taiwan	5	0.5%
16	Ireland	4	0.4%
17	Australia	4	0.4%
18	Belgium	3	0.3%
19	Cyprus	3	0.3%
20	Belarus	2	0.2%
21	Italy	2	0.2%
22	Iran, Islamic Republic of	2	0.2%
23	Hungary	2	0.2%
24	Thailand	2	0.2%
25	Spain	2	0.2%
26	Nigeria	2	0.2%
27	Romania	2	0.2%
28	Morocco	2	0.2%
29	Lithuania	1	0.1%
30	Malaysia	1	0.1%
31	Saudi Arabia	1	0.1%
32	Sweden	1	0.1%
33	Venezuela, Bolivarian Republic of	1	0.1%
34	Viet Nam	1	0.1%
35	Ukraine	1	0.1%
36	Bulgaria	1	0.1%
37	Argentina	1	0.1%