Rank	Countries/Territories	Count	Percent
1	United States	422	42.8%
2	China	248	25.2%
3	Germany	147	14.9%
4	Japan	23	2.3%
5	France	20	2%
6	Netherlands	14	1.4%
7	United Kingdom	13	1.3%
8	Singapore	13	1.3%
9	Australia	11	1.1%
10	Iran, Islamic Republic of	9	0.9%
11	Ireland	9	0.9%
12	Argentina	6	0.6%
13	Cyprus	5	0.5%
14	Viet Nam	5	0.5%
15	Ukraine	4	0.4%
16	Egypt	4	0.4%
17	Canada	4	0.4%
18	India	3	0.3%
19	Korea, Republic of	3	0.3%
20	Malaysia	3	0.3%
21	Mexico	3	0.3%
22	Bulgaria	2	0.2%
23	Hong Kong	2	0.2%
24	Russia	2	0.2%
25	Portugal	2	0.2%
26	Spain	2	0.2%
27	Switzerland	1	0.1%
28	Taiwan	1	0.1%
29	Turkey	1	0.1%
30	Romania	1	0.1%
31	Norway	1	0.1%
32	Slovakia	1	0.1%
33	Mongolia	1	0.1%