Rank	Countries/Territories	Count	Percent
1	United States	304	34.2%
2	China	300	33.8%
3	Germany	66	7.4%
4	India	53	6%
5	Korea, Republic of	24	2.7%
6	Japan	19	2.1%
7	Canada	18	2%
8	Australia	17	1.9%
9	France	15	1.7%
10	Singapore	10	1.1%
11	Ireland	8	0.9%
12	Russia	7	0.8%
13	Cyprus	6	0.7%
14	Iran, Islamic Republic of	4	0.5%
15	Spain	4	0.5%
16	Netherlands	4	0.5%
17	Norway	4	0.5%
18	Greece	3	0.3%
19	Ghana	2	0.2%
20	Denmark	2	0.2%
21	Belgium	2	0.2%
22	Argentina	2	0.2%
23	Pakistan	2	0.2%
24	Poland	2	0.2%
25	Mexico	2	0.2%
26	United Kingdom	2	0.2%
27	Viet Nam	1	0.1%
28	Mongolia	1	0.1%
29	Malaysia	1	0.1%
30	Brazil	1	0.1%
31	Ethiopia	1	0.1%
32	Jordan	1	0.1%