Rank	Countries/Territories	Count	Percent
1	United States	453	42.9%
2	China	336	31.8%
3	Germany	102	9.6%
4	Singapore	42	4%
5	Japan	21	2%
6	Netherlands	14	1.3%
7	France	12	1.1%
8	Korea, Republic of	11	1%
9	Canada	11	1%
10	Hong Kong	8	0.8%
11	Russia	7	0.7%
12	Ukraine	6	0.6%
13	Cyprus	6	0.6%
14	Mongolia	6	0.6%
15	Iran, Islamic Republic of	3	0.3%
16	Egypt	3	0.3%
17	Australia	3	0.3%
18	Spain	3	0.3%
19	United Kingdom	2	0.2%
20	Hungary	2	0.2%
21	Poland	2	0.2%
22	Norway	1	0.1%
23	Ireland	1	0.1%
24	India	1	0.1%
25	Sweden	1	0.1%