Rank	Countries/Territories	Count	Percent
1	United States	540	40%
2	China	469	34.8%
3	Germany	97	7.2%
4	France	32	2.4%
5		25	1.9%
6	Japan	21	1.6%
7	Korea, Republic of	20	1.5%
8	Netherlands	14	1%
9	Singapore	12	0.9%
10	Cyprus	10	0.7%
11	Hong Kong	10	0.7%
12	India	9	0.7%
13	United Kingdom	9	0.7%
14	Ireland	8	0.6%
15	Australia	8	0.6%
16	Russia	7	0.5%
17	Austria	6	0.4%
18	Italy	6	0.4%
19	Iran, Islamic Republic of	5	0.4%
20	Switzerland	5	0.4%
21	Spain	4	0.3%
22	Canada	4	0.3%
23	Viet Nam	4	0.3%
24	Greece	3	0.2%
25	Taiwan	3	0.2%
26	Tanzania, United Republic of	2	0.1%
27	Turkey	2	0.1%
28	Indonesia	2	0.1%
29	Brazil	2	0.1%
30	Argentina	2	0.1%
31	Egypt	1	0.1%
32	Georgia	1	0.1%
33	Ukraine	1	0.1%
34	New Zealand	1	0.1%
35	Poland	1	0.1%
36	Portugal	1	0.1%
37	Malaysia	1	0.1%
38	Mongolia	1	0.1%