Rank	Countries/Territories	Count	Percent
1	United States	556	39.5%
2	China	283	20.1%
3	Germany	77	5.5%
4	Russia	49	3.5%
5	Ireland	45	3.2%
6	Japan	42	3%
7	France	36	2.6%
8	Korea, Republic of	34	2.4%
9	India	29	2.1%
10	Italy	26	1.8%
11	Canada	23	1.6%
12	Australia	22	1.6%
13	Malaysia	22	1.6%
14		20	1.4%
15	Netherlands	14	1%
16	Portugal	10	0.7%
17	Czech Republic	9	0.6%
18	Singapore	9	0.6%
19	Austria	8	0.6%
20	Iran, Islamic Republic of	8	0.6%
21	Switzerland	7	0.5%
22	United Kingdom	6	0.4%
23	Belgium	6	0.4%
24	Brazil	6	0.4%
25	Cyprus	5	0.4%
26	Taiwan	5	0.4%
27	Slovakia	5	0.4%
28	Spain	4	0.3%
29	Denmark	4	0.3%
30	Hong Kong	3	0.2%
31	Israel	3	0.2%
32	Latvia	3	0.2%
33	Norway	3	0.2%
34	Pakistan	3	0.2%
35	Thailand	3	0.2%
36	Viet Nam	3	0.2%
37	Turkey	2	0.1%
38	Sweden	2	0.1%
39	Panama	2	0.1%
40	Saudi Arabia	2	0.1%
41	Indonesia	2	0.1%
42	Costa Rica	2	0.1%
43	Bangladesh	2	0.1%
44	Argentina	2	0.1%
45	Egypt	1	0.1%
46	Mongolia	1	0.1%