Rank	Countries/Territories	Count	Percent
1	United States	510	28.1%
2	China	439	24.2%
3	Germany	159	8.8%
4	India	66	3.6%
5		62	3.4%
6	United Kingdom	61	3.4%
7	Canada	43	2.4%
8	Netherlands	43	2.4%
9	Japan	41	2.3%
10	Brazil	30	1.7%
11	Australia	26	1.4%
12	Ireland	24	1.3%
13	Bulgaria	23	1.3%
14	Mexico	19	1%
15	Malaysia	16	0.9%
16	Nigeria	14	0.8%
17	France	13	0.7%
18	Korea, Republic of	12	0.7%
19	Spain	11	0.6%
20	South Africa	10	0.6%
21	Ghana	10	0.6%
22	Italy	9	0.5%
23	Ethiopia	9	0.5%
24	Philippines	9	0.5%
25	Singapore	8	0.4%
26	Indonesia	7	0.4%
27	Denmark	7	0.4%
28	Chile	7	0.4%
29	Belgium	7	0.4%
30	Colombia	6	0.3%
31	Hong Kong	6	0.3%
32	Senegal	6	0.3%
33	Sweden	6	0.3%
34	Switzerland	5	0.3%
35	Ukraine	5	0.3%
36	Thailand	5	0.3%
37	Romania	5	0.3%
38	Kenya	5	0.3%
39	Czech Republic	5	0.3%
40	Egypt	4	0.2%
41	Cyprus	4	0.2%
42	Iran, Islamic Republic of	4	0.2%
43	Russia	4	0.2%
44	Peru	4	0.2%
45	Taiwan	4	0.2%
46	United Arab Emirates	3	0.2%
47	Portugal	3	0.2%
48	Norway	3	0.2%
49	Cameroon	3	0.2%
50	Argentina	2	0.1%
51	Greece	2	0.1%
52	Honduras	2	0.1%
53	Jordan	2	0.1%
54	Kyrgyzstan	2	0.1%
55	Paraguay	2	0.1%
56	Macao	2	0.1%
57	Trinidad and Tobago	2	0.1%
58	Turkey	2	0.1%
59	Tanzania, United Republic of	2	0.1%
60	Slovakia	1	0.1%
61	Uganda	1	0.1%
62	Viet Nam	1	0.1%
63	Zambia	1	0.1%
64	Poland	1	0.1%
65	Saudi Arabia	1	0.1%
66	Mauritius	1	0.1%
67	Lao People's Democratic Republic	1	0.1%
68	Latvia	1	0.1%
69	Hungary	1	0.1%
70	Ecuador	1	0.1%
71	Georgia	1	0.1%