Rank	Countries/Territories	Count	Percent
1	United States	449	44.8%
2	China	271	27%
3	Germany	84	8.4%
4	Japan	31	3.1%
5	India	29	2.9%
6	Korea, Republic of	23	2.3%
7	Russia	22	2.2%
8	Singapore	8	0.8%
9	Hong Kong	7	0.7%
10	Netherlands	6	0.6%
11	Canada	5	0.5%
12	Italy	5	0.5%
13	Australia	5	0.5%
14	Thailand	5	0.5%
15	Argentina	4	0.4%
16	Greece	4	0.4%
17	Brazil	3	0.3%
18	Ireland	3	0.3%
19	Turkey	3	0.3%
20	Viet Nam	3	0.3%
21	United Kingdom	3	0.3%
22	Ukraine	2	0.2%
23	Romania	2	0.2%
24	Taiwan	2	0.2%
25	France	2	0.2%
26	Norway	2	0.2%
27	Macao	2	0.2%
28	Maldives	2	0.2%
29	Mongolia	2	0.2%
30	Spain	2	0.2%
31	Switzerland	1	0.1%
32	Nepal	1	0.1%
33	Slovakia	1	0.1%
34	South Africa	1	0.1%
35	Malaysia	1	0.1%
36	Lebanon	1	0.1%
37	Poland	1	0.1%
38	Portugal	1	0.1%
39	Austria	1	0.1%
40	Bangladesh	1	0.1%
41	Jordan	1	0.1%
42	Iran, Islamic Republic of	1	0.1%