Rank	Countries/Territories	Count	Percent
1	United States	396	31.7%
2	China	298	23.9%
3	Germany	174	13.9%
4	Japan	111	8.9%
5	Ireland	52	4.2%
6	France	25	2%
7	Singapore	23	1.8%
8	Netherlands	21	1.7%
9	Philippines	15	1.2%
10	Turkey	15	1.2%
11	Poland	12	1%
12	United Kingdom	11	0.9%
13	Canada	10	0.8%
14	Cyprus	10	0.8%
15	India	9	0.7%
16	Ukraine	9	0.7%
17	Spain	9	0.7%
18	Iran, Islamic Republic of	8	0.6%
19	Romania	6	0.5%
20	Korea, Republic of	5	0.4%
21	Greece	4	0.3%
22	Hong Kong	3	0.2%
23	Mongolia	3	0.2%
24	Sweden	3	0.2%
25	South Africa	2	0.2%
26	Taiwan	2	0.2%
27	Sudan	2	0.2%
28	Moldova, Republic of	2	0.2%
29	Australia	2	0.2%
30	Bulgaria	1	0.1%
31	Algeria	1	0.1%
32	Argentina	1	0.1%
33	Denmark	1	0.1%
34	Slovenia	1	0.1%
35	Pakistan	1	0.1%
36	Switzerland	1	0.1%