Rank	Countries/Territories	Count	Percent
1	United States	530	31.8%
2	China	485	29.1%
3	Japan	219	13.1%
4	Germany	68	4.1%
5	Singapore	34	2%
6	Iran, Islamic Republic of	29	1.7%
7	Australia	26	1.6%
8	Russia	23	1.4%
9		22	1.3%
10	Korea, Republic of	21	1.3%
11	Netherlands	18	1.1%
12	France	18	1.1%
13	United Kingdom	18	1.1%
14	Taiwan	16	1%
15	Turkey	15	0.9%
16	Hong Kong	11	0.7%
17	Argentina	11	0.7%
18	Ireland	9	0.5%
19	Indonesia	7	0.4%
20	Mongolia	6	0.4%
21	Ukraine	6	0.4%
22	Spain	5	0.3%
23	Colombia	5	0.3%
24	Cyprus	5	0.3%
25	India	5	0.3%
26	Greece	4	0.2%
27	Kazakhstan	4	0.2%
28	Canada	4	0.2%
29	South Africa	4	0.2%
30	Slovenia	3	0.2%
31	Panama	3	0.2%
32	Latvia	3	0.2%
33	New Zealand	3	0.2%
34	Egypt	3	0.2%
35	Bangladesh	2	0.1%
36	Brazil	2	0.1%
37	Norway	2	0.1%
38	Pakistan	2	0.1%
39	Malaysia	2	0.1%
40	Italy	2	0.1%
41	Romania	2	0.1%
42	Sweden	2	0.1%
43	Switzerland	2	0.1%
44	Syrian Arab Republic	1	0.1%
45	Thailand	1	0.1%
46	Mexico	1	0.1%
47	Oman	1	0.1%
48	Czech Republic	1	0.1%
49	Finland	1	0.1%
50	Georgia	1	0.1%