Rank	Countries/Territories	Count	Percent
1	United States	482	41.4%
2	China	319	27.4%
3	Germany	143	12.3%
4	Japan	25	2.1%
5	France	24	2.1%
6	Canada	21	1.8%
7	Belgium	16	1.4%
8	Singapore	16	1.4%
9	South Africa	14	1.2%
10	Netherlands	14	1.2%
11	United Kingdom	9	0.8%
12	Taiwan	7	0.6%
13	Australia	7	0.6%
14	Ireland	6	0.5%
15	Hong Kong	6	0.5%
16	Latvia	6	0.5%
17	Romania	5	0.4%
18	Ukraine	4	0.3%
19	Cyprus	4	0.3%
20	Austria	3	0.3%
21	Bangladesh	3	0.3%
22	Korea, Republic of	3	0.3%
23	Sweden	3	0.3%
24	Russia	3	0.3%
25	Malaysia	2	0.2%
26	Nigeria	2	0.2%
27	Switzerland	2	0.2%
28	Hungary	2	0.2%
29	India	2	0.2%
30	Iran, Islamic Republic of	2	0.2%
31	Brazil	2	0.2%
32	Argentina	2	0.2%
33	Ethiopia	1	0.1%
34	Italy	1	0.1%
35	Turkey	1	0.1%
36	Spain	1	0.1%