Rank	Countries/Territories	Count	Percent
1	United States	558	41.9%
2	China	458	34.4%
3	Germany	122	9.2%
4	France	40	3%
5	India	22	1.7%
6	Korea, Republic of	22	1.7%
7	Japan	15	1.1%
8	Canada	14	1.1%
9	Singapore	10	0.8%
10	Austria	8	0.6%
11	Cyprus	6	0.5%
12	Ireland	6	0.5%
13	Netherlands	5	0.4%
14	Australia	4	0.3%
15	Zimbabwe	4	0.3%
16	Argentina	3	0.2%
17	Portugal	3	0.2%
18	Malaysia	3	0.2%
19	United Kingdom	3	0.2%
20	Ukraine	2	0.2%
21	Luxembourg	2	0.2%
22	Russia	2	0.2%
23	New Zealand	2	0.2%
24	Indonesia	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Hong Kong	2	0.2%
27	Georgia	1	0.1%
28	Bangladesh	1	0.1%
29	Brazil	1	0.1%
30	Denmark	1	0.1%
31	Egypt	1	0.1%
32	Norway	1	0.1%
33	Viet Nam	1	0.1%
34	Sweden	1	0.1%
35	Switzerland	1	0.1%
36	Taiwan	1	0.1%
37	Tanzania, United Republic of	1	0.1%
38	Turkey	1	0.1%