Rank	Countries/Territories	Count	Percent
1	United States	484	44.5%
2	China	287	26.4%
3	Canada	55	5.1%
4	Germany	47	4.3%
5	India	35	3.2%
6	Taiwan	29	2.7%
7	Japan	23	2.1%
8	Russia	22	2%
9	France	20	1.8%
10	Ireland	10	0.9%
11	Korea, Republic of	10	0.9%
12	Australia	9	0.8%
13	United Kingdom	7	0.6%
14	Singapore	6	0.6%
15	Ukraine	5	0.5%
16	Argentina	5	0.5%
17	Italy	4	0.4%
18	Netherlands	4	0.4%
19	Iran, Islamic Republic of	3	0.3%
20	Greece	3	0.3%
21	Israel	2	0.2%
22	Turkey	2	0.2%
23	Mongolia	2	0.2%
24	Malaysia	2	0.2%
25	Malta	1	0.1%
26	Kenya	1	0.1%
27	South Africa	1	0.1%
28	Spain	1	0.1%
29	Norway	1	0.1%
30	Poland	1	0.1%
31	Denmark	1	0.1%
32	Finland	1	0.1%
33	Hong Kong	1	0.1%
34	Hungary	1	0.1%
35	Bangladesh	1	0.1%
36	Brazil	1	0.1%