Rank	Countries/Territories	Count	Percent
1	United States	519	43.6%
2	China	267	22.4%
3	Germany	134	11.3%
4	France	74	6.2%
5	Netherlands	57	4.8%
6	Canada	22	1.8%
7	Czech Republic	19	1.6%
8	Australia	16	1.3%
9	Japan	14	1.2%
10	Ireland	9	0.8%
11	Cyprus	7	0.6%
12	Ukraine	6	0.5%
13	Singapore	6	0.5%
14	South Africa	5	0.4%
15	Spain	5	0.4%
16	United Kingdom	5	0.4%
17	Brazil	4	0.3%
18	Hungary	4	0.3%
19	Russia	3	0.3%
20	Sweden	3	0.3%
21	Taiwan	3	0.3%
22	Tunisia	2	0.2%
23	Malaysia	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	India	1	0.1%
26	Argentina	1	0.1%
27	Austria	1	0.1%