Rank	Countries/Territories	Count	Percent
1	United States	450	50.9%
2	China	192	21.7%
3	Canada	37	4.2%
4	Germany	33	3.7%
5	India	32	3.6%
6	Taiwan	29	3.3%
7	Russia	22	2.5%
8	Japan	18	2%
9	Korea, Republic of	10	1.1%
10	France	8	0.9%
11	Ireland	8	0.9%
12	United Kingdom	7	0.8%
13	Netherlands	4	0.5%
14	Singapore	4	0.5%
15	Italy	4	0.5%
16	Australia	4	0.5%
17	Argentina	2	0.2%
18	Israel	2	0.2%
19	Iran, Islamic Republic of	2	0.2%
20	Turkey	2	0.2%
21	Ukraine	2	0.2%
22	South Africa	1	0.1%
23	Spain	1	0.1%
24	Norway	1	0.1%
25	Poland	1	0.1%
26	Malta	1	0.1%
27	Kenya	1	0.1%
28	Bangladesh	1	0.1%
29	Brazil	1	0.1%
30	Hong Kong	1	0.1%
31	Hungary	1	0.1%
32	Denmark	1	0.1%
33	Finland	1	0.1%