Rank	Countries/Territories	Count	Percent
1	United States	314	38.9%
2	China	262	32.5%
3	Germany	73	9%
4	Switzerland	22	2.7%
5	France	19	2.4%
6	Japan	18	2.2%
7	Canada	17	2.1%
8	Egypt	14	1.7%
9	India	14	1.7%
10	Australia	9	1.1%
11	Netherlands	8	1%
12	Singapore	4	0.5%
13	Costa Rica	4	0.5%
14	Hong Kong	3	0.4%
15	United Kingdom	3	0.4%
16	Korea, Republic of	3	0.4%
17	Ukraine	2	0.2%
18	Viet Nam	2	0.2%
19	Italy	2	0.2%
20	Finland	2	0.2%
21	Cyprus	2	0.2%
22	Denmark	2	0.2%
23	Argentina	2	0.2%
24	Austria	1	0.1%
25	Georgia	1	0.1%
26	Russia	1	0.1%
27	Lithuania	1	0.1%
28	Malaysia	1	0.1%
29	Jordan	1	0.1%