Rank	Countries/Territories	Count	Percent
1	United States	511	42.6%
2	China	339	28.3%
3	Germany	113	9.4%
4	France	47	3.9%
5	Russia	35	2.9%
6	Japan	25	2.1%
7	Korea, Republic of	19	1.6%
8	Netherlands	18	1.5%
9	Singapore	15	1.3%
10	India	11	0.9%
11	Canada	11	0.9%
12	Argentina	7	0.6%
13	Australia	6	0.5%
14	Egypt	6	0.5%
15	Spain	6	0.5%
16	Cyprus	5	0.4%
17	Brazil	4	0.3%
18	Taiwan	4	0.3%
19	Sweden	3	0.3%
20	United Kingdom	2	0.2%
21	Malaysia	2	0.2%
22	Mexico	2	0.2%
23	Mongolia	2	0.2%
24	Latvia	1	0.1%
25	Iran, Islamic Republic of	1	0.1%
26	Kenya	1	0.1%
27	Hong Kong	1	0.1%
28	Norway	1	0.1%
29	Serbia	1	0.1%