Rank	Countries/Territories	Count	Percent
1	United States	387	45.9%
2	China	150	17.8%
3	Japan	57	6.8%
4	Germany	49	5.8%
5	United Kingdom	23	2.7%
6	Russia	17	2%
7	Singapore	16	1.9%
8	India	15	1.8%
9	Australia	14	1.7%
10	Hong Kong	11	1.3%
11	Greece	8	0.9%
12	Canada	8	0.9%
13	France	7	0.8%
14	Korea, Republic of	7	0.8%
15	Netherlands	7	0.8%
16	Egypt	6	0.7%
17	Czech Republic	5	0.6%
18	Spain	5	0.6%
19	Malaysia	5	0.6%
20	United Arab Emirates	3	0.4%
21	Taiwan	3	0.4%
22	Cyprus	3	0.4%
23	Ireland	3	0.4%
24	Italy	2	0.2%
25	Lithuania	2	0.2%
26	Indonesia	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Iraq	2	0.2%
29	New Zealand	2	0.2%
30	Norway	2	0.2%
31	Chile	2	0.2%
32	Denmark	2	0.2%
33	Sweden	2	0.2%
34	Switzerland	1	0.1%
35	Tanzania, United Republic of	1	0.1%
36	Tunisia	1	0.1%
37	Turkey	1	0.1%
38	Finland	1	0.1%
39	Belgium	1	0.1%
40	Brazil	1	0.1%
41	Afghanistan	1	0.1%
42	Algeria	1	0.1%
43	Argentina	1	0.1%
44	Philippines	1	0.1%
45	Portugal	1	0.1%
46	Romania	1	0.1%
47	South Africa	1	0.1%
48	Saudi Arabia	1	0.1%