Rank	Countries/Territories	Count	Percent
1	United States	376	38.6%
2	China	314	32.2%
3	Germany	90	9.2%
4	Japan	19	1.9%
5	Netherlands	19	1.9%
6	Canada	18	1.8%
7	France	18	1.8%
8	Austria	18	1.8%
9	Singapore	12	1.2%
10	Ukraine	11	1.1%
11	United Kingdom	7	0.7%
12	Slovakia	7	0.7%
13	Poland	6	0.6%
14	Australia	6	0.6%
15	Cyprus	5	0.5%
16	Israel	5	0.5%
17	Taiwan	5	0.5%
18	India	4	0.4%
19	Korea, Republic of	4	0.4%
20	Iran, Islamic Republic of	3	0.3%
21	Bulgaria	3	0.3%
22	Malaysia	3	0.3%
23	Portugal	3	0.3%
24	Spain	3	0.3%
25	South Africa	2	0.2%
26	Romania	2	0.2%
27	Russia	2	0.2%
28	Argentina	2	0.2%
29	Italy	2	0.2%
30	Norway	2	0.2%
31	Peru	1	0.1%
32	Macao	1	0.1%
33	Sweden	1	0.1%
34	Switzerland	1	0.1%