Rank	Countries/Territories	Count	Percent
1	United States	336	33%
2	China	318	31.3%
3	Germany	128	12.6%
4	India	32	3.1%
5	United Kingdom	27	2.7%
6	Czech Republic	20	2%
7	France	15	1.5%
8	Netherlands	14	1.4%
9	Canada	11	1.1%
10	Bangladesh	9	0.9%
11	Japan	8	0.8%
12	Pakistan	8	0.8%
13	Moldova, Republic of	7	0.7%
14	Singapore	6	0.6%
15	Sweden	6	0.6%
16	Hong Kong	6	0.6%
17	Australia	6	0.6%
18	Bulgaria	6	0.6%
19	South Africa	5	0.5%
20	Thailand	4	0.4%
21	New Zealand	4	0.4%
22	Cyprus	4	0.4%
23	Iran, Islamic Republic of	4	0.4%
24	Brazil	3	0.3%
25	Korea, Republic of	3	0.3%
26	Ukraine	3	0.3%
27	Taiwan	3	0.3%
28	Saudi Arabia	3	0.3%
29	United Arab Emirates	2	0.2%
30	Latvia	2	0.2%
31	Lithuania	2	0.2%
32	Norway	2	0.2%
33	Russia	2	0.2%
34	Philippines	2	0.2%
35	Argentina	2	0.2%
36	Kenya	2	0.2%
37	Romania	1	0.1%
38	Senegal	1	0.1%