Rank	Countries/Territories	Count	Percent
1	United States	218	27.8%
2	China	213	27.2%
3	Australia	64	8.2%
4	United Kingdom	38	4.9%
5	Latvia	24	3.1%
6	Japan	18	2.3%
7	Hungary	17	2.2%
8	Germany	16	2%
9	Ghana	14	1.8%
10	Saudi Arabia	13	1.7%
11	Italy	12	1.5%
12	Canada	12	1.5%
13	Taiwan	9	1.1%
14	Korea, Republic of	8	1%
15	Norway	8	1%
16	Pakistan	8	1%
17	Brazil	7	0.9%
18	Thailand	7	0.9%
19	Ireland	6	0.8%
20	Argentina	5	0.6%
21	France	5	0.6%
22	Netherlands	4	0.5%
23	New Zealand	4	0.5%
24	Philippines	4	0.5%
25	Singapore	4	0.5%
26	Indonesia	4	0.5%
27	Tunisia	4	0.5%
28	Turkey	4	0.5%
29	Iran, Islamic Republic of	3	0.4%
30	India	3	0.4%
31	Congo, The Democratic Republic of The	3	0.4%
32	Portugal	3	0.4%
33	Romania	2	0.3%
34	Russia	2	0.3%
35	South Africa	2	0.3%
36	Ecuador	2	0.3%
37	Hong Kong	2	0.3%
38	Israel	2	0.3%
39	Ukraine	2	0.3%
40	Sweden	2	0.3%
41	Egypt	1	0.1%
42	Cyprus	1	0.1%
43	Spain	1	0.1%
44	Lithuania	1	0.1%
45	Jordan	1	0.1%