Rank	Countries/Territories	Count	Percent
1	United States	394	36.9%
2	China	345	32.3%
3	Germany	79	7.4%
4	France	41	3.8%
5	Japan	37	3.5%
6	India	20	1.9%
7	Korea, Republic of	20	1.9%
8	Canada	15	1.4%
9	United Kingdom	15	1.4%
10	Iran, Islamic Republic of	12	1.1%
11	Netherlands	9	0.8%
12	Russia	9	0.8%
13	Singapore	8	0.7%
14	Thailand	7	0.7%
15	Spain	6	0.6%
16	Australia	5	0.5%
17	Cyprus	5	0.5%
18	Chile	4	0.4%
19	Colombia	3	0.3%
20	Guinea	3	0.3%
21	Switzerland	3	0.3%
22	Taiwan	3	0.3%
23	Norway	3	0.3%
24	Mexico	3	0.3%
25	Mongolia	3	0.3%
26	Pakistan	2	0.2%
27	Romania	2	0.2%
28	Turkey	2	0.2%
29	Iraq	2	0.2%
30	Bangladesh	2	0.2%
31	Brazil	2	0.2%
32	Ireland	1	0.1%
33	Jordan	1	0.1%
34	Saudi Arabia	1	0.1%
35	Luxembourg	1	0.1%