Rank	Countries/Territories	Count	Percent
1	United States	186	40.8%
2	Germany	96	21.1%
3	China	54	11.8%
4	Japan	29	6.4%
5	Canada	20	4.4%
6	Netherlands	19	4.2%
7	Bulgaria	6	1.3%
8	Australia	4	0.9%
9	France	4	0.9%
10	Cyprus	4	0.9%
11	India	4	0.9%
12	Russia	3	0.7%
13	South Africa	3	0.7%
14	Oman	2	0.4%
15	Romania	2	0.4%
16	Ukraine	2	0.4%
17	Indonesia	2	0.4%
18	Hong Kong	2	0.4%
19	Hungary	2	0.4%
20	Egypt	2	0.4%
21	Brazil	2	0.4%
22	Argentina	1	0.2%
23	Greece	1	0.2%
24	Malaysia	1	0.2%
25	Portugal	1	0.2%
26	Norway	1	0.2%
27	Taiwan	1	0.2%
28	Turkey	1	0.2%
29	Slovenia	1	0.2%