Rank	Countries/Territories	Count	Percent
1	United States	567	43.3%
2	China	225	17.2%
3	Japan	155	11.8%
4	Germany	83	6.3%
5	Singapore	42	3.2%
6	India	33	2.5%
7	Netherlands	22	1.7%
8	Canada	19	1.5%
9	France	17	1.3%
10		12	0.9%
11	Taiwan	9	0.7%
12	Thailand	8	0.6%
13	United Kingdom	8	0.6%
14	Switzerland	7	0.5%
15	Ireland	7	0.5%
16	Morocco	7	0.5%
17	Italy	6	0.5%
18	Argentina	6	0.5%
19	Cyprus	6	0.5%
20	Brazil	6	0.5%
21	Bulgaria	6	0.5%
22	Australia	5	0.4%
23	Russia	5	0.4%
24	Spain	4	0.3%
25	Serbia	3	0.2%
26	Pakistan	3	0.2%
27	Mexico	3	0.2%
28	Israel	3	0.2%
29	Korea, Republic of	3	0.2%
30	Hong Kong	3	0.2%
31	Romania	3	0.2%
32	Turkey	3	0.2%
33	Ukraine	3	0.2%
34	Viet Nam	2	0.2%
35	Hungary	2	0.2%
36	Ethiopia	2	0.2%
37	Mongolia	2	0.2%
38	Latvia	1	0.1%
39	Philippines	1	0.1%
40	New Zealand	1	0.1%
41	Norway	1	0.1%
42	Sweden	1	0.1%
43	Finland	1	0.1%
44	Iran, Islamic Republic of	1	0.1%
45	Algeria	1	0.1%
46	Egypt	1	0.1%
47	Uruguay	1	0.1%