Rank	Countries/Territories	Count	Percent
1	United States	572	33.2%
2	China	440	25.6%
3	Germany	137	8%
4	India	84	4.9%
5	Singapore	55	3.2%
6	United Kingdom	51	3%
7	France	41	2.4%
8	Canada	32	1.9%
9	Japan	30	1.7%
10	Russia	30	1.7%
11	Hong Kong	23	1.3%
12	Sweden	20	1.2%
13	Netherlands	19	1.1%
14	Latvia	15	0.9%
15	Iran, Islamic Republic of	15	0.9%
16	Korea, Republic of	14	0.8%
17	Turkey	13	0.8%
18	Thailand	10	0.6%
19	Australia	9	0.5%
20	Brazil	8	0.5%
21	Egypt	8	0.5%
22	Cyprus	7	0.4%
23	Ireland	7	0.4%
24	Malaysia	7	0.4%
25	Palestine, State of	7	0.4%
26	New Zealand	5	0.3%
27	Norway	4	0.2%
28	Pakistan	4	0.2%
29	Mexico	4	0.2%
30	Indonesia	4	0.2%
31	Saudi Arabia	4	0.2%
32	South Africa	4	0.2%
33	Italy	4	0.2%
34	Romania	3	0.2%
35	Denmark	3	0.2%
36	Finland	3	0.2%
37	Colombia	3	0.2%
38	Austria	3	0.2%
39	Argentina	2	0.1%
40	Israel	2	0.1%
41	Lebanon	2	0.1%
42	Lithuania	2	0.1%
43	Taiwan	2	0.1%
44	Tanzania, United Republic of	2	0.1%
45	Tunisia	2	0.1%
46	Ukraine	1	0.1%
47	Spain	1	0.1%
48	Bangladesh	1	0.1%
49	Belgium	1	0.1%
50	Georgia	1	0.1%
51	Estonia	1	0.1%