Rank	Countries/Territories	Count	Percent
1	United States	472	24.9%
2	China	439	23.2%
3	Japan	334	17.7%
4	Germany	164	8.7%
5	Singapore	70	3.7%
6	Netherlands	56	3%
7	Russia	52	2.7%
8	India	46	2.4%
9	Taiwan	31	1.6%
10	Canada	29	1.5%
11	France	25	1.3%
12	Korea, Republic of	22	1.2%
13	Ireland	18	1%
14	Greece	10	0.5%
15	Hong Kong	10	0.5%
16	Egypt	9	0.5%
17	United Kingdom	9	0.5%
18	Indonesia	7	0.4%
19	Iraq	7	0.4%
20	Norway	6	0.3%
21	Ukraine	6	0.3%
22	Switzerland	6	0.3%
23	Turkey	5	0.3%
24	Philippines	5	0.3%
25	Mexico	5	0.3%
26	Cyprus	5	0.3%
27	Australia	5	0.3%
28	Cameroon	4	0.2%
29	Iran, Islamic Republic of	3	0.2%
30	Romania	3	0.2%
31	Spain	3	0.2%
32	Sweden	2	0.1%
33	Viet Nam	2	0.1%
34	Poland	2	0.1%
35	Lebanon	2	0.1%
36	Argentina	2	0.1%
37	Denmark	2	0.1%
38	Bangladesh	2	0.1%
39	Bosnia and Herzegovina	2	0.1%
40	Brazil	1	0.1%
41	Belgium	1	0.1%
42	Estonia	1	0.1%
43	Ethiopia	1	0.1%
44	Finland	1	0.1%
45	Italy	1	0.1%
46	Peru	1	0.1%
47	Nigeria	1	0.1%
48	Sri Lanka	1	0.1%
49	United Arab Emirates	1	0.1%