Rank	Countries/Territories	Count	Percent
1	United States	302	37.9%
2	China	247	31%
3	Germany	80	10.1%
4	Japan	23	2.9%
5	India	15	1.9%
6	France	15	1.9%
7	Brazil	13	1.6%
8	Canada	13	1.6%
9	Netherlands	11	1.4%
10	Korea, Republic of	9	1.1%
11	Ireland	6	0.8%
12	Singapore	6	0.8%
13	Spain	6	0.8%
14	United Kingdom	5	0.6%
15	Poland	4	0.5%
16	Italy	4	0.5%
17	Hong Kong	4	0.5%
18	Iran, Islamic Republic of	3	0.4%
19	Australia	3	0.4%
20	Cyprus	3	0.4%
21	Norway	3	0.4%
22	Mongolia	3	0.4%
23	Thailand	3	0.4%
24	Nigeria	2	0.3%
25	Denmark	2	0.3%
26	Argentina	2	0.3%
27	Belgium	2	0.3%
28	Hungary	1	0.1%
29	Mexico	1	0.1%
30	Morocco	1	0.1%
31	Peru	1	0.1%
32	Russia	1	0.1%
33	Ukraine	1	0.1%
34	Switzerland	1	0.1%