Rank	Countries/Territories	Count	Percent
1	United States	327	33.9%
2	China	139	14.4%
3	United Kingdom	100	10.4%
4	Germany	91	9.4%
5	Canada	37	3.8%
6	Netherlands	35	3.6%
7	Korea, Republic of	23	2.4%
8	Switzerland	21	2.2%
9	India	19	2%
10	Japan	14	1.5%
11	Australia	11	1.1%
12	Turkey	11	1.1%
13	Austria	9	0.9%
14	Mexico	9	0.9%
15	Hong Kong	8	0.8%
16	France	8	0.8%
17	Ireland	8	0.8%
18	Taiwan	8	0.8%
19	Viet Nam	7	0.7%
20	Belgium	7	0.7%
21	Singapore	7	0.7%
22	Spain	7	0.7%
23	Lithuania	6	0.6%
24	Italy	6	0.6%
25	Russia	6	0.6%
26	Malaysia	5	0.5%
27	Denmark	4	0.4%
28	Cyprus	3	0.3%
29	Israel	3	0.3%
30	Iran, Islamic Republic of	3	0.3%
31	Argentina	2	0.2%
32	Libya	2	0.2%
33	Sweden	2	0.2%
34	South Africa	2	0.2%
35	New Zealand	2	0.2%
36	Zambia	2	0.2%
37	United Arab Emirates	2	0.2%
38	Togo	1	0.1%
39	Philippines	1	0.1%
40	Poland	1	0.1%
41	Portugal	1	0.1%
42	Romania	1	0.1%
43	Luxembourg	1	0.1%
44	Chile	1	0.1%
45	Indonesia	1	0.1%