Rank	Countries/Territories	Count	Percent
1	United States	421	32.1%
2	China	297	22.6%
3	Japan	155	11.8%
4	South Africa	66	5%
5	Netherlands	65	5%
6	Germany	38	2.9%
7	Bulgaria	35	2.7%
8	Singapore	27	2.1%
9	France	16	1.2%
10	India	13	1%
11	Canada	12	0.9%
12	United Kingdom	12	0.9%
13	Taiwan	10	0.8%
14	Australia	10	0.8%
15	Ireland	10	0.8%
16	Thailand	9	0.7%
17	Viet Nam	9	0.7%
18	Belgium	7	0.5%
19	Latvia	7	0.5%
20	Moldova, Republic of	6	0.5%
21	Iraq	6	0.5%
22	Hong Kong	6	0.5%
23	Hungary	6	0.5%
24	Switzerland	5	0.4%
25	Malaysia	5	0.4%
26	Indonesia	4	0.3%
27	Chile	4	0.3%
28	Lithuania	4	0.3%
29	Portugal	4	0.3%
30	Romania	3	0.2%
31	Mongolia	3	0.2%
32	Ukraine	3	0.2%
33	Turkey	2	0.2%
34	Poland	2	0.2%
35	Spain	2	0.2%
36	Sweden	2	0.2%
37	Korea, Republic of	2	0.2%
38	Russia	2	0.2%
39	Saudi Arabia	2	0.2%
40	Nigeria	2	0.2%
41	Norway	2	0.2%
42	Cyprus	2	0.2%
43	Iran, Islamic Republic of	2	0.2%
44	Italy	2	0.2%
45	Argentina	2	0.2%
46	Czech Republic	1	0.1%
47	Finland	1	0.1%
48	Cote D'ivoire	1	0.1%
49	Pakistan	1	0.1%
50	Philippines	1	0.1%
51	Kenya	1	0.1%
52	Togo	1	0.1%
53	Uganda	1	0.1%