Rank	Countries/Territories	Count	Percent
1	United States	412	38.3%
2	China	296	27.5%
3	Germany	86	8%
4	Spain	40	3.7%
5	Latvia	36	3.3%
6	India	30	2.8%
7	France	22	2%
8	Netherlands	17	1.6%
9	Japan	16	1.5%
10	Australia	15	1.4%
11	Canada	14	1.3%
12	Egypt	8	0.7%
13	Ireland	7	0.7%
14	Korea, Republic of	7	0.7%
15	Cyprus	6	0.6%
16	Hong Kong	6	0.6%
17	Ukraine	6	0.6%
18	Singapore	5	0.5%
19	Philippines	4	0.4%
20	Portugal	4	0.4%
21	Brazil	4	0.4%
22	Italy	4	0.4%
23	Hungary	3	0.3%
24	South Africa	3	0.3%
25	Switzerland	3	0.3%
26	Macao	3	0.3%
27	Malaysia	3	0.3%
28	Pakistan	2	0.2%
29	Turkey	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Bangladesh	2	0.2%
32	Finland	1	0.1%
33	Colombia	1	0.1%
34	Israel	1	0.1%
35	Sweden	1	0.1%
36	Saudi Arabia	1	0.1%
37	Mongolia	1	0.1%
38	Lithuania	1	0.1%