Rank	Countries/Territories	Count	Percent
1	United States	279	45.4%
2	China	137	22.3%
3	Germany	74	12%
4	France	21	3.4%
5	Canada	13	2.1%
6	Iran, Islamic Republic of	9	1.5%
7	Japan	8	1.3%
8	Korea, Republic of	8	1.3%
9	Netherlands	7	1.1%
10	India	5	0.8%
11	Singapore	5	0.8%
12	Thailand	5	0.8%
13	Russia	3	0.5%
14	Portugal	3	0.5%
15	Ukraine	3	0.5%
16	United Kingdom	3	0.5%
17	Philippines	3	0.5%
18	Ireland	3	0.5%
19	Italy	3	0.5%
20	Cyprus	3	0.5%
21	Australia	2	0.3%
22	Brazil	2	0.3%
23	Hong Kong	2	0.3%
24	Poland	2	0.3%
25	Taiwan	2	0.3%
26	Turkey	2	0.3%
27	South Africa	2	0.3%
28	Spain	1	0.2%
29	Qatar	1	0.2%
30	Malaysia	1	0.2%
31	Argentina	1	0.2%
32	Belgium	1	0.2%
33	Finland	1	0.2%