Rank	Countries/Territories	Count	Percent
1	United States	588	35.9%
2	China	546	33.3%
3	Germany	142	8.7%
4	France	77	4.7%
5	Canada	28	1.7%
6	Netherlands	27	1.6%
7	Indonesia	25	1.5%
8	Japan	24	1.5%
9	India	23	1.4%
10	Australia	19	1.2%
11	Singapore	13	0.8%
12	Taiwan	10	0.6%
13	United Kingdom	8	0.5%
14	Iran, Islamic Republic of	8	0.5%
15	Romania	7	0.4%
16	Hong Kong	7	0.4%
17	Russia	6	0.4%
18	Mexico	6	0.4%
19	South Africa	6	0.4%
20	Ukraine	5	0.3%
21	Thailand	5	0.3%
22	Saudi Arabia	5	0.3%
23	Norway	5	0.3%
24	Cyprus	5	0.3%
25	Czech Republic	4	0.2%
26	Argentina	4	0.2%
27	Pakistan	4	0.2%
28	Latvia	4	0.2%
29	Portugal	4	0.2%
30	Switzerland	2	0.1%
31	Macao	2	0.1%
32	Italy	2	0.1%
33	Philippines	2	0.1%
34	Slovakia	2	0.1%
35	Algeria	2	0.1%
36	Denmark	2	0.1%
37	Greece	2	0.1%
38	Finland	2	0.1%
39	Colombia	1	0.1%
40	Egypt	1	0.1%
41	Ireland	1	0.1%
42	Malaysia	1	0.1%
43	Spain	1	0.1%
44	Turkey	1	0.1%