Rank	Countries/Territories	Count	Percent
1	United States	272	31.1%
2	China	256	29.3%
3	Germany	128	14.6%
4	India	39	4.5%
5	Japan	27	3.1%
6	France	25	2.9%
7	Singapore	18	2.1%
8	Netherlands	17	1.9%
9	Korea, Republic of	13	1.5%
10	Canada	11	1.3%
11	Australia	11	1.3%
12	Cyprus	7	0.8%
13	Ireland	7	0.8%
14	Russia	7	0.8%
15	United Kingdom	6	0.7%
16	Taiwan	4	0.5%
17	Iran, Islamic Republic of	4	0.5%
18	Czech Republic	4	0.5%
19	Italy	3	0.3%
20	Romania	2	0.2%
21	Malaysia	2	0.2%
22	Belgium	2	0.2%
23	Denmark	1	0.1%
24	Egypt	1	0.1%
25	Hong Kong	1	0.1%
26	Iceland	1	0.1%
27	Israel	1	0.1%
28	Jordan	1	0.1%
29	Mexico	1	0.1%
30	New Zealand	1	0.1%
31	Poland	1	0.1%
32	Spain	1	0.1%