Rank	Countries/Territories	Count	Percent
1	United States	431	39.5%
2	China	329	30.2%
3	Germany	111	10.2%
4	India	31	2.8%
5	Korea, Republic of	19	1.7%
6	Hong Kong	16	1.5%
7	Netherlands	15	1.4%
8	Canada	14	1.3%
9	Japan	13	1.2%
10	Singapore	12	1.1%
11	Czech Republic	11	1%
12	Denmark	9	0.8%
13	Hungary	7	0.6%
14	Ireland	7	0.6%
15	Russia	6	0.6%
16	Spain	6	0.6%
17	Taiwan	6	0.6%
18	France	5	0.5%
19	Cyprus	5	0.5%
20	Australia	5	0.5%
21	Moldova, Republic of	4	0.4%
22	Iran, Islamic Republic of	3	0.3%
23	Italy	3	0.3%
24	United Kingdom	3	0.3%
25	Viet Nam	2	0.2%
26	Indonesia	2	0.2%
27	Norway	2	0.2%
28	Portugal	2	0.2%
29	Romania	2	0.2%
30	Ukraine	2	0.2%
31	Switzerland	1	0.1%
32	Saudi Arabia	1	0.1%
33	Slovakia	1	0.1%
34	New Zealand	1	0.1%
35	Greece	1	0.1%
36	Belgium	1	0.1%
37	Croatia	1	0.1%