Rank	Countries/Territories	Count	Percent
1	United States	399	38.1%
2	China	275	26.2%
3	Japan	113	10.8%
4	Germany	56	5.3%
5	France	32	3.1%
6	Brazil	27	2.6%
7	Canada	18	1.7%
8	Singapore	18	1.7%
9	Netherlands	15	1.4%
10	United Kingdom	14	1.3%
11		13	1.2%
12	Russia	9	0.9%
13	Ukraine	7	0.7%
14	Iran, Islamic Republic of	7	0.7%
15	Cyprus	6	0.6%
16	Norway	6	0.6%
17	Ecuador	4	0.4%
18	Hungary	4	0.4%
19	Ireland	3	0.3%
20	Denmark	3	0.3%
21	Portugal	3	0.3%
22	Uganda	2	0.2%
23	Australia	2	0.2%
24	Malaysia	2	0.2%
25	India	2	0.2%
26	Georgia	1	0.1%
27	Argentina	1	0.1%
28	Venezuela, Bolivarian Republic of	1	0.1%
29	Viet Nam	1	0.1%
30	Peru	1	0.1%
31	South Africa	1	0.1%
32	Spain	1	0.1%
33	Switzerland	1	0.1%