Rank	Countries/Territories	Count	Percent
1	United States	324	42.1%
2	China	219	28.5%
3	Germany	87	11.3%
4		17	2.2%
5	France	15	2%
6	Japan	14	1.8%
7	Australia	13	1.7%
8	United Kingdom	8	1%
9	Netherlands	8	1%
10	Singapore	8	1%
11	Ukraine	7	0.9%
12	Latvia	6	0.8%
13	Burkina Faso	5	0.7%
14	Thailand	5	0.7%
15	Russia	3	0.4%
16	South Africa	3	0.4%
17	Cyprus	3	0.4%
18	Egypt	3	0.4%
19	Canada	2	0.3%
20	Bulgaria	2	0.3%
21	Morocco	2	0.3%
22	Iran, Islamic Republic of	2	0.3%
23	Italy	2	0.3%
24	Sweden	2	0.3%
25	Switzerland	2	0.3%
26	Taiwan	1	0.1%
27	New Zealand	1	0.1%
28	Philippines	1	0.1%
29	Romania	1	0.1%
30	Hong Kong	1	0.1%
31	Mauritius	1	0.1%
32	Argentina	1	0.1%