Rank	Countries/Territories	Count	Percent
1	United States	461	35.9%
2	China	357	27.8%
3	Germany	91	7.1%
4	Portugal	65	5.1%
5	United Kingdom	30	2.3%
6	India	29	2.3%
7	Japan	28	2.2%
8	France	27	2.1%
9	Netherlands	20	1.6%
10	Singapore	16	1.2%
11	Taiwan	15	1.2%
12	Korea, Republic of	15	1.2%
13	Canada	12	0.9%
14	Russia	11	0.9%
15	Zambia	11	0.9%
16	Ireland	9	0.7%
17	Italy	6	0.5%
18	Iran, Islamic Republic of	6	0.5%
19	Hong Kong	6	0.5%
20	Indonesia	5	0.4%
21	Cyprus	5	0.4%
22	Denmark	5	0.4%
23	Bangladesh	5	0.4%
24	Australia	4	0.3%
25	Saudi Arabia	4	0.3%
26	Norway	3	0.2%
27	Nepal	3	0.2%
28	Egypt	3	0.2%
29	South Africa	3	0.2%
30	Switzerland	2	0.2%
31	Syrian Arab Republic	2	0.2%
32	Turkey	2	0.2%
33	Poland	2	0.2%
34	Belgium	2	0.2%
35	Brazil	2	0.2%
36	Georgia	2	0.2%
37	Mauritius	2	0.2%
38	Nigeria	2	0.2%
39	Romania	2	0.2%
40	Pakistan	1	0.1%
41	Philippines	1	0.1%
42	Mexico	1	0.1%
43	Malaysia	1	0.1%
44	Greece	1	0.1%
45	Argentina	1	0.1%
46	Estonia	1	0.1%
47	Ethiopia	1	0.1%
48	Spain	1	0.1%
49	Viet Nam	1	0.1%