Rank	Countries/Territories	Count	Percent
1	United States	576	40.5%
2	China	543	38.2%
3	Germany	110	7.7%
4	France	39	2.7%
5	Canada	17	1.2%
6		13	0.9%
7	Singapore	11	0.8%
8	Russia	9	0.6%
9	Netherlands	9	0.6%
10	India	9	0.6%
11	Japan	8	0.6%
12	Australia	8	0.6%
13	Cyprus	8	0.6%
14	Ireland	8	0.6%
15	Hong Kong	6	0.4%
16	Israel	5	0.4%
17	Ukraine	5	0.4%
18	United Kingdom	5	0.4%
19	Spain	4	0.3%
20	Iran, Islamic Republic of	3	0.2%
21	Taiwan	3	0.2%
22	Latvia	2	0.1%
23	Bahrain	2	0.1%
24	Bangladesh	2	0.1%
25	Sweden	2	0.1%
26	Romania	2	0.1%
27	Mongolia	2	0.1%
28	Norway	2	0.1%
29	Pakistan	1	0.1%
30	Poland	1	0.1%
31	Morocco	1	0.1%
32	Italy	1	0.1%
33	Switzerland	1	0.1%
34	Argentina	1	0.1%
35	Lithuania	1	0.1%
36	Mexico	1	0.1%