Rank	Countries/Territories	Count	Percent
1	United States	446	44%
2	China	347	34.2%
3	Germany	108	10.7%
4	France	21	2.1%
5	Japan	14	1.4%
6	Singapore	13	1.3%
7	Netherlands	8	0.8%
8	United Kingdom	7	0.7%
9	Norway	6	0.6%
10	Cyprus	6	0.6%
11	Canada	6	0.6%
12	Pakistan	3	0.3%
13	Poland	3	0.3%
14	Spain	3	0.3%
15	Switzerland	2	0.2%
16	South Africa	2	0.2%
17	Malaysia	2	0.2%
18	Mongolia	2	0.2%
19	Iran, Islamic Republic of	2	0.2%
20	Portugal	2	0.2%
21	Hong Kong	2	0.2%
22	Bangladesh	2	0.2%
23	Brazil	1	0.1%
24	Australia	1	0.1%
25	Georgia	1	0.1%
26	India	1	0.1%
27	Korea, Republic of	1	0.1%
28	Turkey	1	0.1%
29	Sweden	1	0.1%