Rank	Countries/Territories	Count	Percent
1	United States	294	28.2%
2	China	279	26.8%
3	Germany	80	7.7%
4	India	35	3.4%
5	France	35	3.4%
6	Netherlands	31	3%
7	Portugal	31	3%
8	Korea, Republic of	30	2.9%
9	Singapore	28	2.7%
10	Japan	26	2.5%
11	Italy	17	1.6%
12	Mexico	16	1.5%
13	Canada	14	1.3%
14	Ireland	12	1.2%
15	Sweden	12	1.2%
16	Czech Republic	9	0.9%
17	Taiwan	8	0.8%
18	Spain	7	0.7%
19	Cyprus	7	0.7%
20	Russia	7	0.7%
21	Turkey	6	0.6%
22	Poland	5	0.5%
23	Greece	5	0.5%
24	Chile	4	0.4%
25	Australia	3	0.3%
26	Ecuador	3	0.3%
27	Pakistan	3	0.3%
28	Peru	3	0.3%
29	Iran, Islamic Republic of	3	0.3%
30	Switzerland	3	0.3%
31	United Kingdom	2	0.2%
32	Tanzania, United Republic of	2	0.2%
33	Viet Nam	2	0.2%
34	Latvia	2	0.2%
35	Argentina	2	0.2%
36	Denmark	2	0.2%
37	Colombia	2	0.2%
38	Costa Rica	2	0.2%
39	Croatia	1	0.1%
40	Brazil	1	0.1%
41	Bulgaria	1	0.1%
42	El Salvador	1	0.1%
43	Hong Kong	1	0.1%
44	Lithuania	1	0.1%
45	Malaysia	1	0.1%
46	Jamaica	1	0.1%
47	Zambia	1	0.1%