Rank	Countries/Territories	Count	Percent
1	United States	542	34.9%
2	China	421	27.1%
3	Germany	101	6.5%
4	United Kingdom	67	4.3%
5	Australia	62	4%
6	India	41	2.6%
7	Iran, Islamic Republic of	31	2%
8	France	29	1.9%
9	Japan	27	1.7%
10	Canada	25	1.6%
11	Poland	19	1.2%
12	Korea, Republic of	18	1.2%
13	Sweden	13	0.8%
14	Peru	12	0.8%
15	Netherlands	12	0.8%
16	Indonesia	12	0.8%
17	Spain	11	0.7%
18	Thailand	11	0.7%
19	Cyprus	10	0.6%
20	Ireland	9	0.6%
21	Italy	6	0.4%
22	Norway	6	0.4%
23	Taiwan	6	0.4%
24	Turkey	5	0.3%
25	Russia	5	0.3%
26	Ghana	5	0.3%
27	Denmark	4	0.3%
28	Argentina	4	0.3%
29	Singapore	4	0.3%
30	South Africa	3	0.2%
31	Uganda	3	0.2%
32	Malaysia	3	0.2%
33	Morocco	2	0.1%
34	Latvia	2	0.1%
35	Oman	2	0.1%
36	Pakistan	2	0.1%
37	Philippines	2	0.1%
38	Colombia	2	0.1%
39	Greece	2	0.1%
40	Iraq	2	0.1%
41	Ukraine	2	0.1%
42	Saudi Arabia	2	0.1%
43	Ethiopia	1	0.1%
44	Czech Republic	1	0.1%
45	Bangladesh	1	0.1%
46	Belgium	1	0.1%
47	Portugal	1	0.1%
48	New Zealand	1	0.1%
49	Mexico	1	0.1%
50	Mongolia	1	0.1%