Rank	Countries/Territories	Count	Percent
1	United States	264	38.8%
2	China	161	23.7%
3	Germany	77	11.3%
4	Japan	22	3.2%
5	Canada	14	2.1%
6	Netherlands	13	1.9%
7	Ireland	13	1.9%
8	United Kingdom	11	1.6%
9	Iran, Islamic Republic of	10	1.5%
10	Egypt	9	1.3%
11	India	8	1.2%
12	Cyprus	7	1%
13	Turkey	7	1%
14	Russia	6	0.9%
15	France	6	0.9%
16	Hong Kong	5	0.7%
17	Korea, Republic of	5	0.7%
18	Portugal	5	0.7%
19	Singapore	4	0.6%
20	Hungary	4	0.6%
21	Denmark	3	0.4%
22	Belgium	3	0.4%
23	Brazil	2	0.3%
24	Australia	2	0.3%
25	Indonesia	2	0.3%
26	South Africa	2	0.3%
27	Spain	2	0.3%
28	Switzerland	2	0.3%
29	Taiwan	2	0.3%
30	New Zealand	2	0.3%
31	Philippines	1	0.1%
32	Romania	1	0.1%
33	Saudi Arabia	1	0.1%
34	Malaysia	1	0.1%
35	Mongolia	1	0.1%
36	Bahrain	1	0.1%
37	Bulgaria	1	0.1%