Rank	Countries/Territories	Count	Percent
1	United States	263	46.9%
2	China	101	18%
3	Germany	33	5.9%
4	Japan	29	5.2%
5	United Kingdom	19	3.4%
6	India	12	2.1%
7	Hong Kong	11	2%
8	Russia	11	2%
9	Australia	10	1.8%
10	Singapore	8	1.4%
11	Korea, Republic of	7	1.2%
12	Canada	6	1.1%
13	Egypt	6	1.1%
14	Czech Republic	5	0.9%
15	Netherlands	5	0.9%
16	France	4	0.7%
17	Taiwan	3	0.5%
18	Spain	3	0.5%
19	New Zealand	2	0.4%
20	Norway	2	0.4%
21	Lithuania	2	0.4%
22	Iran, Islamic Republic of	2	0.4%
23	Iraq	2	0.4%
24	Ireland	1	0.2%
25	Indonesia	1	0.2%
26	Finland	1	0.2%
27	Cyprus	1	0.2%
28	Belgium	1	0.2%
29	Afghanistan	1	0.2%
30	Argentina	1	0.2%
31	Saudi Arabia	1	0.2%
32	Philippines	1	0.2%
33	Portugal	1	0.2%
34	Romania	1	0.2%
35	Switzerland	1	0.2%
36	South Africa	1	0.2%
37	Tanzania, United Republic of	1	0.2%
38	Turkey	1	0.2%