Rank	Countries/Territories	Count	Percent
1	United States	578	40.6%
2	China	444	31.2%
3	Germany	125	8.8%
4	Japan	38	2.7%
5	India	37	2.6%
6	Korea, Republic of	29	2%
7	Russia	22	1.5%
8	Greece	11	0.8%
9	Canada	10	0.7%
10	Singapore	10	0.7%
11	Turkey	9	0.6%
12	Thailand	8	0.6%
13	Viet Nam	7	0.5%
14	Hong Kong	7	0.5%
15	Netherlands	7	0.5%
16	United Kingdom	6	0.4%
17	Taiwan	5	0.4%
18	Senegal	5	0.4%
19	France	5	0.4%
20	Italy	5	0.4%
21	Australia	5	0.4%
22	Argentina	4	0.3%
23	Brazil	3	0.2%
24	Ireland	3	0.2%
25	Ukraine	3	0.2%
26	Romania	2	0.1%
27	Tunisia	2	0.1%
28	Spain	2	0.1%
29	Indonesia	2	0.1%
30	Egypt	2	0.1%
31	Azerbaijan	2	0.1%
32	Macao	2	0.1%
33	Norway	2	0.1%
34	Maldives	2	0.1%
35	Mexico	2	0.1%
36	Mongolia	2	0.1%
37	Nepal	2	0.1%
38	Lebanon	1	0.1%
39	Jordan	1	0.1%
40	Poland	1	0.1%
41	Portugal	1	0.1%
42	Malaysia	1	0.1%
43	Bangladesh	1	0.1%
44	Austria	1	0.1%
45	Iran, Islamic Republic of	1	0.1%
46	Switzerland	1	0.1%
47	Slovakia	1	0.1%
48	South Africa	1	0.1%
49	United Arab Emirates	1	0.1%