Rank	Countries/Territories	Count	Percent
1	United States	536	44.1%
2	China	353	29%
3	Germany	68	5.6%
4	Canada	25	2.1%
5	India	22	1.8%
6	Japan	22	1.8%
7	France	17	1.4%
8	Taiwan	17	1.4%
9	Singapore	13	1.1%
10	Australia	13	1.1%
11	Netherlands	12	1%
12	Spain	11	0.9%
13	Egypt	9	0.7%
14	Russia	8	0.7%
15	United Kingdom	8	0.7%
16	Iran, Islamic Republic of	6	0.5%
17	Ireland	6	0.5%
18	Greece	5	0.4%
19	Hong Kong	5	0.4%
20	Cyprus	5	0.4%
21	Argentina	4	0.3%
22	Korea, Republic of	4	0.3%
23	Mexico	4	0.3%
24	Romania	4	0.3%
25	Pakistan	4	0.3%
26	Turkey	4	0.3%
27	Sweden	4	0.3%
28	Lithuania	3	0.2%
29	Brazil	3	0.2%
30	Cambodia	2	0.2%
31	Belgium	2	0.2%
32	Malaysia	2	0.2%
33	Indonesia	2	0.2%
34	Philippines	2	0.2%
35	Poland	2	0.2%
36	Tunisia	2	0.2%
37	Switzerland	1	0.1%
38	New Zealand	1	0.1%
39	Saudi Arabia	1	0.1%
40	Bangladesh	1	0.1%
41	Hungary	1	0.1%
42	Ghana	1	0.1%
43	Georgia	1	0.1%