Rank	Countries/Territories	Count	Percent
1	United States	434	43.4%
2	China	272	27.2%
3	Germany	122	12.2%
4	Japan	26	2.6%
5	Spain	24	2.4%
6	Korea, Republic of	13	1.3%
7	Hong Kong	11	1.1%
8	Canada	8	0.8%
9	France	7	0.7%
10	Singapore	7	0.7%
11	Denmark	6	0.6%
12	Ukraine	6	0.6%
13	Netherlands	5	0.5%
14	Argentina	5	0.5%
15	Algeria	4	0.4%
16	Ireland	4	0.4%
17	Morocco	4	0.4%
18	Russia	4	0.4%
19	Senegal	4	0.4%
20	South Africa	3	0.3%
21	India	3	0.3%
22	Australia	3	0.3%
23	United Kingdom	3	0.3%
24	Bangladesh	2	0.2%
25	Brazil	2	0.2%
26	Cyprus	2	0.2%
27	Romania	2	0.2%
28	Sweden	2	0.2%
29	Taiwan	2	0.2%
30	Slovakia	2	0.2%
31	Malaysia	1	0.1%
32	Norway	1	0.1%
33	Philippines	1	0.1%
34	Poland	1	0.1%
35	Israel	1	0.1%
36	Georgia	1	0.1%
37	Ghana	1	0.1%