Rank	Countries/Territories	Count	Percent
1	United States	620	27.3%
2	China	385	16.9%
3	Japan	376	16.5%
4	Germany	210	9.2%
5	United Kingdom	100	4.4%
6	Singapore	82	3.6%
7	India	78	3.4%
8	Canada	33	1.5%
9	Belgium	30	1.3%
10	Korea, Republic of	29	1.3%
11	Italy	28	1.2%
12	Australia	23	1%
13	France	22	1%
14	Taiwan	18	0.8%
15	Switzerland	16	0.7%
16	Indonesia	15	0.7%
17	Malaysia	13	0.6%
18	Netherlands	13	0.6%
19	Nigeria	13	0.6%
20	Pakistan	13	0.6%
21	Cyprus	12	0.5%
22	South Africa	12	0.5%
23	Spain	10	0.4%
24	Romania	10	0.4%
25	Hong Kong	9	0.4%
26	Sweden	8	0.4%
27	United Arab Emirates	8	0.4%
28	Brazil	7	0.3%
29	Egypt	7	0.3%
30	Norway	6	0.3%
31	Chile	5	0.2%
32	Peru	5	0.2%
33	Portugal	5	0.2%
34	Denmark	4	0.2%
35	Austria	4	0.2%
36	Iran, Islamic Republic of	4	0.2%
37	Ireland	4	0.2%
38	Mexico	4	0.2%
39	Libya	3	0.1%
40	Russia	3	0.1%
41	Turkey	3	0.1%
42	Zimbabwe	2	0.1%
43	Slovakia	2	0.1%
44	Saudi Arabia	2	0.1%
45	Serbia	2	0.1%
46	Palestine, State of	2	0.1%
47	Lithuania	2	0.1%
48	Morocco	2	0.1%
49	Israel	2	0.1%
50	Greece	2	0.1%
51	Bangladesh	2	0.1%
52	Argentina	1	0%
53	Ukraine	1	0%