Rank	Countries/Territories	Count	Percent
1	United States	258	39.3%
2	China	173	26.3%
3	Germany	63	9.6%
4	Australia	26	4%
5	Italy	14	2.1%
6	Japan	14	2.1%
7	France	11	1.7%
8	Denmark	11	1.7%
9	Spain	8	1.2%
10	Netherlands	8	1.2%
11	Norway	8	1.2%
12	Mexico	7	1.1%
13	United Kingdom	7	1.1%
14	Hungary	7	1.1%
15	Singapore	6	0.9%
16	Peru	4	0.6%
17	Turkey	2	0.3%
18	Iran, Islamic Republic of	2	0.3%
19	Ireland	2	0.3%
20	Greece	2	0.3%
21	Austria	2	0.3%
22	Bangladesh	2	0.3%
23	Belgium	2	0.3%
24	Canada	2	0.3%
25	Cyprus	2	0.3%
26		2	0.3%
27	Argentina	1	0.2%
28	Hong Kong	1	0.2%
29	Finland	1	0.2%
30	India	1	0.2%
31	Ukraine	1	0.2%
32	Slovakia	1	0.2%
33	Switzerland	1	0.2%
34	Thailand	1	0.2%
35	Romania	1	0.2%
36	Russia	1	0.2%
37	New Zealand	1	0.2%
38	Nigeria	1	0.2%