Rank	Countries/Territories	Count	Percent
1	United States	506	38.9%
2	China	426	32.7%
3	Germany	89	6.8%
4	France	43	3.3%
5	Japan	36	2.8%
6	Netherlands	31	2.4%
7	Australia	29	2.2%
8	Singapore	25	1.9%
9	Norway	13	1%
10	Korea, Republic of	13	1%
11	Sweden	12	0.9%
12	Cyprus	9	0.7%
13	India	8	0.6%
14	Ireland	8	0.6%
15	Ecuador	5	0.4%
16	Turkey	5	0.4%
17	Romania	4	0.3%
18	United Kingdom	3	0.2%
19	Switzerland	3	0.2%
20	South Africa	3	0.2%
21	Spain	3	0.2%
22	Hong Kong	3	0.2%
23	Canada	3	0.2%
24	Argentina	2	0.2%
25	Italy	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Egypt	2	0.2%
28	Austria	2	0.2%
29	Ukraine	2	0.2%
30	Malaysia	2	0.2%
31	Mexico	1	0.1%
32	Russia	1	0.1%
33	Portugal	1	0.1%
34	Taiwan	1	0.1%
35	Belgium	1	0.1%
36	Brazil	1	0.1%
37	Bulgaria	1	0.1%