Rank	Countries/Territories	Count	Percent
1	United States	410	43.8%
2	China	252	26.9%
3	Germany	113	12.1%
4	Canada	16	1.7%
5	France	14	1.5%
6	Japan	14	1.5%
7	Korea, Republic of	13	1.4%
8	Singapore	13	1.4%
9	Australia	11	1.2%
10	Netherlands	9	1%
11	United Kingdom	9	1%
12	Brazil	8	0.9%
13	India	8	0.9%
14	Czech Republic	8	0.9%
15	Hungary	5	0.5%
16	Taiwan	4	0.4%
17	Cyprus	4	0.4%
18	Hong Kong	3	0.3%
19	Iran, Islamic Republic of	3	0.3%
20	Ireland	3	0.3%
21	Kenya	3	0.3%
22	South Africa	3	0.3%
23	Chile	2	0.2%
24	Bangladesh	2	0.2%
25	Belgium	1	0.1%
26	Argentina	1	0.1%
27	Spain	1	0.1%
28	Switzerland	1	0.1%
29	Norway	1	0.1%
30	Mongolia	1	0.1%
31	Ukraine	1	0.1%