Rank	Countries/Territories	Count	Percent
1	United States	306	35.7%
2	China	249	29%
3	Germany	91	10.6%
4	France	32	3.7%
5	Korea, Republic of	31	3.6%
6	Japan	19	2.2%
7	Canada	18	2.1%
8	Netherlands	18	2.1%
9	India	16	1.9%
10	United Kingdom	13	1.5%
11	Ukraine	10	1.2%
12	Portugal	6	0.7%
13	Russia	6	0.7%
14	Hong Kong	5	0.6%
15	South Africa	4	0.5%
16	Spain	3	0.3%
17	Taiwan	3	0.3%
18	Singapore	3	0.3%
19	Italy	3	0.3%
20	Iran, Islamic Republic of	2	0.2%
21	Ireland	2	0.2%
22	Egypt	2	0.2%
23	Cyprus	2	0.2%
24	Argentina	2	0.2%
25	Austria	2	0.2%
26	Mexico	2	0.2%
27	Luxembourg	1	0.1%
28	Serbia	1	0.1%
29	Turkey	1	0.1%
30	Sweden	1	0.1%
31	Belgium	1	0.1%
32	Australia	1	0.1%
33	Denmark	1	0.1%
34	Greece	1	0.1%