Rank	Countries/Territories	Count	Percent
1	United States	448	34.8%
2	China	383	29.8%
3	Germany	91	7.1%
4	France	28	2.2%
5	Japan	23	1.8%
6	Korea, Republic of	23	1.8%
7	United Kingdom	23	1.8%
8	India	20	1.6%
9	Netherlands	20	1.6%
10		18	1.4%
11	Russia	17	1.3%
12	Taiwan	17	1.3%
13	Hong Kong	16	1.2%
14	Romania	15	1.2%
15	Iran, Islamic Republic of	14	1.1%
16	Australia	12	0.9%
17	Singapore	11	0.9%
18	Turkey	10	0.8%
19	Canada	9	0.7%
20	Belgium	8	0.6%
21	Saudi Arabia	8	0.6%
22	Cyprus	7	0.5%
23	Italy	6	0.5%
24	Spain	6	0.5%
25	Pakistan	5	0.4%
26	Norway	4	0.3%
27	Ireland	4	0.3%
28	Denmark	4	0.3%
29	Greece	4	0.3%
30	Egypt	3	0.2%
31	Peru	3	0.2%
32	New Zealand	2	0.2%
33	Luxembourg	2	0.2%
34	Malaysia	2	0.2%
35	Indonesia	2	0.2%
36	Finland	2	0.2%
37	Brazil	2	0.2%
38	Chile	2	0.2%
39	Switzerland	2	0.2%
40	Viet Nam	2	0.2%
41	Uganda	1	0.1%
42	Thailand	1	0.1%
43	Bangladesh	1	0.1%
44	Argentina	1	0.1%
45	Croatia	1	0.1%
46	Lithuania	1	0.1%
47	Mexico	1	0.1%
48	Poland	1	0.1%