Rank	Countries/Territories	Count	Percent
1	United States	567	45.9%
2	China	307	24.9%
3	Germany	125	10.1%
4	United Kingdom	30	2.4%
5	Singapore	25	2%
6	France	23	1.9%
7	Netherlands	22	1.8%
8	Japan	22	1.8%
9	Cyprus	11	0.9%
10	Canada	10	0.8%
11	Bulgaria	8	0.6%
12	Egypt	7	0.6%
13	Czech Republic	7	0.6%
14	Korea, Republic of	6	0.5%
15	Spain	6	0.5%
16	Mexico	5	0.4%
17	Bangladesh	5	0.4%
18	Indonesia	5	0.4%
19	Ukraine	5	0.4%
20	Hong Kong	4	0.3%
21	Italy	4	0.3%
22	Latvia	4	0.3%
23	Slovakia	4	0.3%
24	Peru	3	0.2%
25	Russia	3	0.2%
26	Australia	3	0.2%
27	Brazil	2	0.2%
28	Lebanon	2	0.2%
29	Mongolia	1	0.1%
30	Saudi Arabia	1	0.1%
31	South Africa	1	0.1%
32	Switzerland	1	0.1%
33	Uganda	1	0.1%
34	Argentina	1	0.1%
35	Denmark	1	0.1%
36	Iran, Islamic Republic of	1	0.1%
37	Guatemala	1	0.1%
38	Viet Nam	1	0.1%