Rank	Countries/Territories	Count	Percent
1	United States	529	51.7%
2	China	204	19.9%
3	Germany	65	6.4%
4	Japan	46	4.5%
5	Russia	26	2.5%
6	India	24	2.3%
7	Hong Kong	14	1.4%
8	Australia	13	1.3%
9	Singapore	13	1.3%
10	Norway	13	1.3%
11	Israel	11	1.1%
12	Canada	8	0.8%
13	Ireland	6	0.6%
14	France	6	0.6%
15	Korea, Republic of	6	0.6%
16	United Kingdom	6	0.6%
17	Luxembourg	4	0.4%
18	Netherlands	4	0.4%
19	Bosnia and Herzegovina	3	0.3%
20	Brazil	2	0.2%
21	Bulgaria	2	0.2%
22	Argentina	2	0.2%
23	Denmark	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%