Rank	Countries/Territories	Count	Percent
1	United States	421	39.3%
2	China	293	27.4%
3	Germany	134	12.5%
4	Canada	25	2.3%
5	Australia	21	2%
6	France	20	1.9%
7	Japan	18	1.7%
8	Spain	16	1.5%
9	Netherlands	13	1.2%
10	Singapore	13	1.2%
11	Korea, Republic of	12	1.1%
12	Lithuania	12	1.1%
13	Belgium	12	1.1%
14	Argentina	9	0.8%
15	Cyprus	8	0.7%
16	Hong Kong	6	0.6%
17	India	6	0.6%
18	Taiwan	4	0.4%
19	Romania	3	0.3%
20	United Kingdom	3	0.3%
21	Slovakia	2	0.2%
22	South Africa	2	0.2%
23	Tunisia	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Italy	2	0.2%
26	Mauritius	2	0.2%
27	Denmark	2	0.2%
28	Brazil	2	0.2%
29	Georgia	1	0.1%
30	Mongolia	1	0.1%
31	Latvia	1	0.1%
32	Turkey	1	0.1%
33	Thailand	1	0.1%