Rank	Countries/Territories	Count	Percent
1	United States	668	37.2%
2	China	432	24%
3	Germany	210	11.7%
4	Japan	91	5.1%
5	Italy	55	3.1%
6	France	51	2.8%
7	Netherlands	30	1.7%
8	Canada	23	1.3%
9	Hong Kong	21	1.2%
10	Ireland	20	1.1%
11	India	19	1.1%
12	Singapore	19	1.1%
13	Russia	16	0.9%
14	Thailand	13	0.7%
15	Korea, Republic of	12	0.7%
16	Bulgaria	10	0.6%
17	Malaysia	8	0.4%
18	Taiwan	8	0.4%
19	United Kingdom	8	0.4%
20	South Africa	8	0.4%
21	Spain	7	0.4%
22	Mauritius	7	0.4%
23	Cyprus	6	0.3%
24	Latvia	5	0.3%
25	Indonesia	4	0.2%
26	Burkina Faso	4	0.2%
27	Ukraine	4	0.2%
28	Romania	3	0.2%
29	Cote D'ivoire	3	0.2%
30	Egypt	3	0.2%
31	Ghana	3	0.2%
32	Nigeria	3	0.2%
33	Lithuania	2	0.1%
34	Hungary	2	0.1%
35	Colombia	2	0.1%
36	Brazil	2	0.1%
37	Poland	2	0.1%
38	Sweden	2	0.1%
39	Viet Nam	2	0.1%
40	Portugal	1	0.1%
41	Australia	1	0.1%
42	Greece	1	0.1%
43	Czech Republic	1	0.1%
44	Norway	1	0.1%
45	Pakistan	1	0.1%
46	Philippines	1	0.1%
47	Iran, Islamic Republic of	1	0.1%
48	Israel	1	0.1%
49	Lebanon	1	0.1%