Rank	Countries/Territories	Count	Percent
1	United States	194	33.6%
2	China	167	28.9%
3	Germany	64	11.1%
4	Japan	24	4.2%
5	Russia	18	3.1%
6	India	15	2.6%
7	France	14	2.4%
8	Canada	11	1.9%
9	Singapore	11	1.9%
10	Netherlands	8	1.4%
11	Cyprus	6	1%
12	Argentina	6	1%
13	Korea, Republic of	5	0.9%
14	Peru	4	0.7%
15	Portugal	4	0.7%
16	Iran, Islamic Republic of	3	0.5%
17	Australia	3	0.5%
18	Ireland	2	0.3%
19	Italy	2	0.3%
20	Luxembourg	2	0.3%
21	Mongolia	2	0.3%
22	Taiwan	2	0.3%
23	Poland	2	0.3%
24	Nigeria	2	0.3%
25	Norway	2	0.3%
26	Greece	1	0.2%
27	Switzerland	1	0.2%
28	Ukraine	1	0.2%
29	Bangladesh	1	0.2%
30	Bulgaria	1	0.2%