Rank	Countries/Territories	Count	Percent
1	United States	507	52.7%
2	China	180	18.7%
3	Germany	65	6.8%
4	Japan	46	4.8%
5	Russia	26	2.7%
6	India	23	2.4%
7	Hong Kong	13	1.4%
8	Singapore	13	1.4%
9	Australia	12	1.2%
10	Israel	11	1.1%
11	Canada	8	0.8%
12	Ireland	6	0.6%
13	United Kingdom	6	0.6%
14	Korea, Republic of	6	0.6%
15	France	5	0.5%
16	Luxembourg	4	0.4%
17	Norway	4	0.4%
18	Bosnia and Herzegovina	3	0.3%
19	Brazil	2	0.2%
20	Bulgaria	2	0.2%
21	Argentina	2	0.2%
22	Denmark	2	0.2%
23	Netherlands	2	0.2%
24	Romania	2	0.2%
25	Turkey	2	0.2%
26	Taiwan	2	0.2%
27	Thailand	1	0.1%
28	Sweden	1	0.1%
29	Ukraine	1	0.1%
30	Philippines	1	0.1%
31	Malaysia	1	0.1%
32	Kenya	1	0.1%
33	Indonesia	1	0.1%
34	Czech Republic	1	0.1%