Rank	Countries/Territories	Count	Percent
1	United States	1966	48.3%
2	China	863	21.2%
3	Germany	260	6.4%
4	Japan	189	4.6%
5	Singapore	118	2.9%
6	Russia	112	2.7%
7	France	86	2.1%
8	Netherlands	57	1.4%
9	United Kingdom	53	1.3%
10	India	46	1.1%
11	Thailand	31	0.8%
12	Canada	28	0.7%
13	Australia	23	0.6%
14	Ireland	19	0.5%
15	Spain	16	0.4%
16	Romania	15	0.4%
17	Belgium	15	0.4%
18	Sweden	10	0.2%
19	Norway	9	0.2%
20	Denmark	9	0.2%
21	Korea, Republic of	9	0.2%
22	Cyprus	8	0.2%
23	Brazil	8	0.2%
24	Switzerland	8	0.2%
25	Turkey	8	0.2%
26	Bangladesh	7	0.2%
27	Hong Kong	7	0.2%
28	Austria	6	0.1%
29	Philippines	6	0.1%
30	Ukraine	5	0.1%
31	South Africa	5	0.1%
32	Greece	5	0.1%
33	Israel	4	0.1%
34	Italy	4	0.1%
35	Finland	4	0.1%
36	Poland	4	0.1%
37	New Zealand	4	0.1%
38	Portugal	3	0.1%
39	United Arab Emirates	3	0.1%
40	Costa Rica	3	0.1%
41	Argentina	3	0.1%
42	Indonesia	3	0.1%
43	Iran, Islamic Republic of	2	0%
44	Latvia	2	0%
45	Lebanon	2	0%
46	Macao	2	0%
47	Bulgaria	2	0%
48	Czech Republic	2	0%
49	Uruguay	2	0%
50	Moldova, Republic of	2	0%
51	Peru	2	0%
52	Oman	2	0%
53	Taiwan	2	0%
54	Slovenia	1	0%
55	Pakistan	1	0%
56	Georgia	1	0%
57	Bosnia and Herzegovina	1	0%
58	Malaysia	1	0%
59	Malta	1	0%
60	Mauritius	1	0%
61	Jordan	1	0%
62	Kenya	1	0%
63	Iraq	1	0%