Rank	Countries/Territories	Count	Percent
1	United States	493	35.9%
2	China	430	31.3%
3	Germany	117	8.5%
4	India	55	4%
5	Japan	28	2%
6	United Kingdom	22	1.6%
7	Greece	19	1.4%
8	Taiwan	15	1.1%
9	Canada	14	1%
10	Korea, Republic of	14	1%
11	Netherlands	14	1%
12	Italy	13	0.9%
13	Australia	13	0.9%
14	France	12	0.9%
15	Hong Kong	9	0.7%
16	Brazil	8	0.6%
17	Romania	8	0.6%
18	Russia	7	0.5%
19	Spain	7	0.5%
20	Senegal	6	0.4%
21	Singapore	6	0.4%
22	Poland	6	0.4%
23	Iran, Islamic Republic of	4	0.3%
24	Ireland	4	0.3%
25	Argentina	4	0.3%
26	Belgium	4	0.3%
27	Cyprus	4	0.3%
28	Bangladesh	3	0.2%
29	Portugal	3	0.2%
30	Sweden	3	0.2%
31	South Africa	2	0.1%
32	Tunisia	2	0.1%
33	Palestine, State of	2	0.1%
34	Ukraine	2	0.1%
35	Israel	2	0.1%
36	Latvia	2	0.1%
37	Macao	2	0.1%
38	Austria	2	0.1%
39	Chile	2	0.1%
40	Czech Republic	2	0.1%
41	Ethiopia	2	0.1%
42	Ecuador	1	0.1%
43	Colombia	1	0.1%
44	Cambodia	1	0.1%
45	Mongolia	1	0.1%
46	Indonesia	1	0.1%
47	Saudi Arabia	1	0.1%
48	Norway	1	0.1%
49	Turkey	1	0.1%