Rank	Countries/Territories	Count	Percent
1	United States	311	39.2%
2	China	193	24.3%
3	Germany	86	10.8%
4	India	53	6.7%
5	Singapore	19	2.4%
6	Netherlands	14	1.8%
7	Pakistan	12	1.5%
8	Korea, Republic of	11	1.4%
9	Ireland	9	1.1%
10	Czech Republic	9	1.1%
11	Egypt	7	0.9%
12	Taiwan	7	0.9%
13	Iraq	6	0.8%
14	Japan	6	0.8%
15	Mexico	5	0.6%
16	France	5	0.6%
17	Indonesia	4	0.5%
18	Brazil	4	0.5%
19	Qatar	4	0.5%
20	Russia	4	0.5%
21	Canada	3	0.4%
22	Bangladesh	2	0.3%
23	Belgium	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Hong Kong	2	0.3%
26	United Kingdom	2	0.3%
27	Italy	1	0.1%
28	Ecuador	1	0.1%
29	Colombia	1	0.1%
30	Cyprus	1	0.1%
31	Romania	1	0.1%
32	Palestine, State of	1	0.1%
33	Tunisia	1	0.1%
34	Turkey	1	0.1%
35	United Arab Emirates	1	0.1%
36	Moldova, Republic of	1	0.1%
37	Morocco	1	0.1%
38	New Zealand	1	0.1%