Rank	Countries/Territories	Count	Percent
1	United States	259	30%
2	China	226	26.2%
3	Germany	102	11.8%
4	India	44	5.1%
5	Japan	34	3.9%
6	Brazil	19	2.2%
7	Singapore	18	2.1%
8	Netherlands	17	2%
9	United Kingdom	15	1.7%
10	Norway	14	1.6%
11	Australia	13	1.5%
12	France	9	1%
13	Mexico	8	0.9%
14	Iran, Islamic Republic of	7	0.8%
15	Switzerland	6	0.7%
16	Egypt	6	0.7%
17	Cyprus	5	0.6%
18	Korea, Republic of	5	0.6%
19	Ukraine	5	0.6%
20	Taiwan	4	0.5%
21	Canada	4	0.5%
22	Ecuador	4	0.5%
23	Greece	4	0.5%
24	Hong Kong	4	0.5%
25	Turkey	3	0.3%
26	Italy	3	0.3%
27	Malaysia	2	0.2%
28	New Zealand	2	0.2%
29	Ireland	2	0.2%
30	South Africa	2	0.2%
31	Sri Lanka	2	0.2%
32	Romania	2	0.2%
33	Russia	2	0.2%
34	Denmark	2	0.2%
35	Croatia	2	0.2%
36	Czech Republic	1	0.1%
37	Argentina	1	0.1%
38	Ghana	1	0.1%
39	Senegal	1	0.1%
40	Poland	1	0.1%
41	Latvia	1	0.1%
42	Nigeria	1	0.1%