Rank	Countries/Territories	Count	Percent
1	United States	596	31.6%
2	China	450	23.8%
3	Japan	299	15.8%
4	Germany	109	5.8%
5	Russia	53	2.8%
6	Singapore	47	2.5%
7	Korea, Republic of	47	2.5%
8	Iran, Islamic Republic of	33	1.7%
9	United Kingdom	33	1.7%
10	Taiwan	29	1.5%
11		28	1.5%
12	India	24	1.3%
13	Netherlands	22	1.2%
14	Canada	17	0.9%
15	France	16	0.8%
16	Sweden	12	0.6%
17	Poland	11	0.6%
18	Morocco	8	0.4%
19	Cyprus	6	0.3%
20	Spain	5	0.3%
21	Norway	4	0.2%
22	Hong Kong	4	0.2%
23	Denmark	3	0.2%
24	Australia	3	0.2%
25	Bangladesh	3	0.2%
26	Mexico	3	0.2%
27	Palestine, State of	3	0.2%
28	South Africa	3	0.2%
29	Thailand	3	0.2%
30	Malaysia	2	0.1%
31	Pakistan	2	0.1%
32	Portugal	2	0.1%
33	Turkey	1	0.1%
34	Brazil	1	0.1%
35	Algeria	1	0.1%
36	Argentina	1	0.1%
37	Israel	1	0.1%
38	Latvia	1	0.1%
39	Liechtenstein	1	0.1%
40	Lithuania	1	0.1%