Rank	Countries/Territories	Count	Percent
1	United States	479	31.9%
2	China	397	26.4%
3	Japan	105	7%
4	Germany	94	6.3%
5	United Kingdom	59	3.9%
6	Spain	32	2.1%
7	Australia	29	1.9%
8	Italy	23	1.5%
9	Austria	19	1.3%
10	Singapore	19	1.3%
11	Canada	18	1.2%
12	Korea, Republic of	18	1.2%
13	Netherlands	16	1.1%
14	Taiwan	16	1.1%
15	India	14	0.9%
16	Thailand	11	0.7%
17	Ireland	10	0.7%
18	Brazil	10	0.7%
19	Greece	9	0.6%
20	Denmark	9	0.6%
21	Colombia	9	0.6%
22	Portugal	9	0.6%
23	Sweden	9	0.6%
24	France	8	0.5%
25	Philippines	7	0.5%
26	Hong Kong	7	0.5%
27	Iran, Islamic Republic of	6	0.4%
28	Argentina	5	0.3%
29	Belgium	5	0.3%
30	Saudi Arabia	5	0.3%
31	Turkey	4	0.3%
32	Norway	4	0.3%
33	Russia	4	0.3%
34	Croatia	4	0.3%
35	Ecuador	4	0.3%
36	Romania	3	0.2%
37	Poland	2	0.1%
38	Mexico	2	0.1%
39	Cyprus	2	0.1%
40	Bangladesh	2	0.1%
41	Switzerland	2	0.1%
42	Viet Nam	1	0.1%
43	South Africa	1	0.1%
44	United Arab Emirates	1	0.1%
45	Czech Republic	1	0.1%
46	Egypt	1	0.1%
47	Finland	1	0.1%
48	New Zealand	1	0.1%
49	Latvia	1	0.1%
50	Lebanon	1	0.1%
51	Lithuania	1	0.1%
52	Luxembourg	1	0.1%