Rank	Countries/Territories	Count	Percent
1	United States	315	39%
2	China	243	30.1%
3	Germany	89	11%
4	Japan	19	2.4%
5	Canada	15	1.9%
6	India	13	1.6%
7	Turkey	11	1.4%
8	United Kingdom	9	1.1%
9	Russia	9	1.1%
10	Netherlands	8	1%
11	Portugal	7	0.9%
12	France	7	0.9%
13	Italy	7	0.9%
14	Denmark	7	0.9%
15	South Africa	6	0.7%
16	Switzerland	5	0.6%
17	Indonesia	5	0.6%
18	Egypt	4	0.5%
19	Cyprus	4	0.5%
20	Colombia	3	0.4%
21	Malaysia	3	0.4%
22	Thailand	3	0.4%
23	Singapore	2	0.2%
24	Viet Nam	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Ireland	2	0.2%
27	Chile	2	0.2%
28	Australia	2	0.2%
29	Ukraine	1	0.1%
30	Slovenia	1	0.1%
31	Spain	1	0.1%