Rank	Countries/Territories	Count	Percent
1	United States	283	40.5%
2	China	145	20.8%
3	Germany	68	9.7%
4	France	21	3%
5	Japan	20	2.9%
6	India	18	2.6%
7	Canada	18	2.6%
8	Ireland	16	2.3%
9	Korea, Republic of	15	2.1%
10	Netherlands	15	2.1%
11	Russia	13	1.9%
12	United Kingdom	11	1.6%
13	Singapore	6	0.9%
14	Malaysia	5	0.7%
15	South Africa	4	0.6%
16	Turkey	4	0.6%
17	Australia	4	0.6%
18	Bulgaria	3	0.4%
19	Cyprus	3	0.4%
20	Portugal	3	0.4%
21	Viet Nam	3	0.4%
22	Senegal	2	0.3%
23	New Zealand	2	0.3%
24	Czech Republic	2	0.3%
25	Egypt	1	0.1%
26	Estonia	1	0.1%
27	Ethiopia	1	0.1%
28	Finland	1	0.1%
29	Brazil	1	0.1%
30	Jordan	1	0.1%
31	Indonesia	1	0.1%
32	Iran, Islamic Republic of	1	0.1%
33	Greece	1	0.1%
34	Hong Kong	1	0.1%
35	Norway	1	0.1%
36	Oman	1	0.1%
37	Mongolia	1	0.1%
38	Nepal	1	0.1%