Rank	Countries/Territories	Count	Percent
1	United States	421	38.7%
2	China	324	29.8%
3	Germany	96	8.8%
4	United Kingdom	26	2.4%
5	France	23	2.1%
6	Australia	19	1.7%
7	India	18	1.7%
8	Japan	14	1.3%
9	Korea, Republic of	14	1.3%
10	Netherlands	13	1.2%
11	Canada	10	0.9%
12	Spain	10	0.9%
13	Slovenia	9	0.8%
14	Singapore	8	0.7%
15	Italy	8	0.7%
16	Hong Kong	7	0.6%
17	Argentina	6	0.6%
18	Cyprus	6	0.6%
19	Taiwan	6	0.6%
20	Turkey	6	0.6%
21	Ireland	5	0.5%
22	Malaysia	5	0.5%
23	Russia	3	0.3%
24	Georgia	3	0.3%
25	Iran, Islamic Republic of	2	0.2%
26	Czech Republic	2	0.2%
27	Belgium	2	0.2%
28	Romania	2	0.2%
29	Slovakia	2	0.2%
30	South Africa	2	0.2%
31	Ukraine	2	0.2%
32	Thailand	2	0.2%
33	Tunisia	1	0.1%
34	United Arab Emirates	1	0.1%
35	Mexico	1	0.1%
36	Mongolia	1	0.1%
37	Nigeria	1	0.1%
38	Philippines	1	0.1%
39	Poland	1	0.1%
40	Austria	1	0.1%
41	Belarus	1	0.1%
42	Egypt	1	0.1%
43	Finland	1	0.1%
44	Indonesia	1	0.1%