Rank	Countries/Territories	Count	Percent
1	United States	541	39.9%
2	China	372	27.4%
3	Canada	67	4.9%
4	Germany	67	4.9%
5	France	33	2.4%
6	Netherlands	28	2.1%
7	United Kingdom	22	1.6%
8	Ireland	18	1.3%
9	Korea, Republic of	16	1.2%
10	India	16	1.2%
11	Japan	15	1.1%
12	Turkey	13	1%
13	Australia	12	0.9%
14	Indonesia	10	0.7%
15	Taiwan	10	0.7%
16	Singapore	9	0.7%
17	Colombia	9	0.7%
18	Belgium	8	0.6%
19	Iran, Islamic Republic of	8	0.6%
20	Ghana	7	0.5%
21	Cyprus	6	0.4%
22	Nigeria	6	0.4%
23	Israel	6	0.4%
24	Hong Kong	5	0.4%
25	Russia	5	0.4%
26	Denmark	4	0.3%
27	Greece	4	0.3%
28	South Africa	4	0.3%
29	Sweden	4	0.3%
30	Uzbekistan	3	0.2%
31	Brazil	3	0.2%
32	Norway	3	0.2%
33	Estonia	3	0.2%
34	Argentina	2	0.1%
35	Viet Nam	2	0.1%
36	Switzerland	1	0.1%
37	Spain	1	0.1%
38	Tunisia	1	0.1%
39	Ukraine	1	0.1%
40	Egypt	1	0.1%
41	Croatia	1	0.1%
42	Honduras	1	0.1%
43	Iraq	1	0.1%
44	Italy	1	0.1%
45	Lebanon	1	0.1%
46	Lithuania	1	0.1%
47	Malaysia	1	0.1%
48	Mexico	1	0.1%
49	Romania	1	0.1%
50	Saudi Arabia	1	0.1%
51	Serbia	1	0.1%