Rank	Countries/Territories	Count	Percent
1	United States	497	37.6%
2	China	459	34.7%
3	Germany	102	7.7%
4	France	30	2.3%
5	Japan	25	1.9%
6	Canada	22	1.7%
7	Russia	19	1.4%
8	Turkey	15	1.1%
9	Singapore	11	0.8%
10	Pakistan	11	0.8%
11	Netherlands	11	0.8%
12	Norway	9	0.7%
13	Italy	8	0.6%
14	Australia	8	0.6%
15	Brazil	8	0.6%
16	Ghana	7	0.5%
17	Hong Kong	7	0.5%
18	India	7	0.5%
19	Korea, Republic of	6	0.5%
20	Belgium	5	0.4%
21	Syrian Arab Republic	5	0.4%
22	Spain	4	0.3%
23	Argentina	4	0.3%
24	Cyprus	4	0.3%
25	Saudi Arabia	3	0.2%
26	United Kingdom	3	0.2%
27	Taiwan	2	0.2%
28	Thailand	2	0.2%
29	Viet Nam	2	0.2%
30	Poland	2	0.2%
31	Portugal	2	0.2%
32	Ireland	2	0.2%
33	Malaysia	2	0.2%
34	Egypt	2	0.2%
35	Greece	2	0.2%
36	Iceland	2	0.2%
37	Chile	2	0.2%
38	Colombia	2	0.2%
39	Iran, Islamic Republic of	1	0.1%
40	Mauritius	1	0.1%
41	Mexico	1	0.1%
42	New Zealand	1	0.1%
43	Lithuania	1	0.1%
44	Romania	1	0.1%
45	Ukraine	1	0.1%