Rank	Countries/Territories	Count	Percent
1	United States	497	38.6%
2	China	396	30.8%
3	Germany	135	10.5%
4	France	89	6.9%
5	Japan	24	1.9%
6	Netherlands	17	1.3%
7	Russia	17	1.3%
8	India	15	1.2%
9	Norway	13	1%
10	Australia	11	0.9%
11	Cyprus	8	0.6%
12	Canada	7	0.5%
13	Korea, Republic of	7	0.5%
14	Egypt	6	0.5%
15	Singapore	6	0.5%
16	Ireland	5	0.4%
17	United Kingdom	5	0.4%
18	Latvia	4	0.3%
19	Saudi Arabia	3	0.2%
20	Ukraine	2	0.2%
21	Taiwan	2	0.2%
22	Nigeria	2	0.2%
23	Indonesia	2	0.2%
24	Iraq	2	0.2%
25	Hong Kong	2	0.2%
26	Bangladesh	2	0.2%
27	Argentina	1	0.1%
28	Iran, Islamic Republic of	1	0.1%
29	Turkey	1	0.1%
30	South Africa	1	0.1%
31	Spain	1	0.1%
32	Sweden	1	0.1%
33	Switzerland	1	0.1%