Rank	Countries/Territories	Count	Percent
1	United States	509	42.5%
2	China	292	24.4%
3	Germany	133	11.1%
4	Japan	65	5.4%
5	India	43	3.6%
6	Netherlands	13	1.1%
7	Singapore	13	1.1%
8	Brazil	12	1%
9	Spain	11	0.9%
10	United Kingdom	11	0.9%
11	Canada	10	0.8%
12	France	8	0.7%
13		7	0.6%
14	Russia	7	0.6%
15	Taiwan	7	0.6%
16	Italy	6	0.5%
17	Korea, Republic of	6	0.5%
18	Mexico	5	0.4%
19	Malaysia	4	0.3%
20	Hong Kong	4	0.3%
21	Kenya	3	0.3%
22	Ukraine	3	0.3%
23	Switzerland	2	0.2%
24	Australia	2	0.2%
25	Costa Rica	2	0.2%
26	Cyprus	2	0.2%
27	Egypt	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Ireland	2	0.2%
30	Israel	1	0.1%
31	Czech Republic	1	0.1%
32	Belgium	1	0.1%
33	Argentina	1	0.1%
34	Lebanon	1	0.1%
35	Jordan	1	0.1%
36	Kazakhstan	1	0.1%
37	Mongolia	1	0.1%
38	Nicaragua	1	0.1%
39	Palestine, State of	1	0.1%
40	Portugal	1	0.1%
41	Romania	1	0.1%
42	Zimbabwe	1	0.1%