Rank	Countries/Territories	Count	Percent
1	United States	700	37.7%
2	China	265	14.3%
3	Germany	125	6.7%
4	United Kingdom	107	5.8%
5	India	84	4.5%
6	Zambia	51	2.7%
7	Canada	46	2.5%
8	Netherlands	43	2.3%
9	Indonesia	33	1.8%
10	Malaysia	28	1.5%
11	Australia	26	1.4%
12	Saudi Arabia	26	1.4%
13	Russia	22	1.2%
14	France	19	1%
15	Iran, Islamic Republic of	18	1%
16	Ireland	17	0.9%
17	Taiwan	14	0.8%
18	Japan	13	0.7%
19	Belgium	13	0.7%
20	Pakistan	12	0.6%
21	Singapore	12	0.6%
22	Slovakia	11	0.6%
23	South Africa	11	0.6%
24	Mexico	10	0.5%
25	Philippines	10	0.5%
26	Turkey	9	0.5%
27	Ukraine	8	0.4%
28	Egypt	8	0.4%
29	Ghana	8	0.4%
30	Korea, Republic of	8	0.4%
31	Thailand	7	0.4%
32	Italy	6	0.3%
33	Cyprus	6	0.3%
34	Botswana	6	0.3%
35	Israel	5	0.3%
36	Poland	5	0.3%
37	Uganda	4	0.2%
38	Argentina	4	0.2%
39	Bulgaria	3	0.2%
40	Hong Kong	3	0.2%
41	Viet Nam	3	0.2%
42	Tanzania, United Republic of	3	0.2%
43	Qatar	2	0.1%
44	United Arab Emirates	2	0.1%
45	Oman	2	0.1%
46	New Zealand	2	0.1%
47	Nigeria	2	0.1%
48	Iceland	2	0.1%
49	Iraq	2	0.1%
50	Jordan	2	0.1%
51	Kenya	2	0.1%
52	Lithuania	2	0.1%
53	Macao	2	0.1%
54	Albania	2	0.1%
55	Greece	2	0.1%
56	Guatemala	2	0.1%
57	Azerbaijan	1	0.1%
58	Bangladesh	1	0.1%
59	Brazil	1	0.1%
60	Malta	1	0.1%
61	Mauritius	1	0.1%
62	Lebanon	1	0.1%
63	Norway	1	0.1%
64	Mongolia	1	0.1%
65	Nepal	1	0.1%
66	Spain	1	0.1%
67	Sri Lanka	1	0.1%
68	Sweden	1	0.1%
69	Switzerland	1	0.1%
70	Palestine, State of	1	0.1%
71	Peru	1	0.1%