Rank	Countries/Territories	Count	Percent
1	United States	521	40.2%
2	China	366	28.3%
3	Germany	111	8.6%
4	France	71	5.5%
5	Australia	35	2.7%
6	Egypt	24	1.9%
7	Japan	21	1.6%
8	Netherlands	18	1.4%
9	United Kingdom	18	1.4%
10	Algeria	11	0.8%
11	Russia	10	0.8%
12	Singapore	10	0.8%
13	Switzerland	10	0.8%
14	Spain	8	0.6%
15	Italy	6	0.5%
16	Malaysia	6	0.5%
17	Argentina	6	0.5%
18	Indonesia	6	0.5%
19	Cyprus	5	0.4%
20	Canada	5	0.4%
21	Brazil	4	0.3%
22	Latvia	4	0.3%
23	Mongolia	3	0.2%
24	Taiwan	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	India	2	0.2%
27	Viet Nam	2	0.2%
28	Finland	1	0.1%
29	Colombia	1	0.1%
30	Bangladesh	1	0.1%
31	South Africa	1	0.1%
32	Serbia	1	0.1%
33	Pakistan	1	0.1%
34	Poland	1	0.1%
35	Romania	1	0.1%