Rank	Countries/Territories	Count	Percent
1	United States	510	39.2%
2	China	488	37.5%
3	Germany	93	7.1%
4	France	65	5%
5	Japan	26	2%
6	Netherlands	14	1.1%
7	Canada	12	0.9%
8	Korea, Republic of	11	0.8%
9	Switzerland	10	0.8%
10	Russia	8	0.6%
11	Hong Kong	7	0.5%
12	Australia	7	0.5%
13	Cyprus	5	0.4%
14	India	5	0.4%
15	Italy	5	0.4%
16	Denmark	4	0.3%
17	Singapore	3	0.2%
18	South Africa	3	0.2%
19	Malaysia	3	0.2%
20	Thailand	2	0.2%
21	United Kingdom	2	0.2%
22	Norway	2	0.2%
23	Bangladesh	2	0.2%
24	Belgium	2	0.2%
25	Indonesia	2	0.2%
26	Ireland	2	0.2%
27	Argentina	1	0.1%
28	Iran, Islamic Republic of	1	0.1%
29	Brazil	1	0.1%
30	Egypt	1	0.1%
31	Poland	1	0.1%
32	Romania	1	0.1%
33	New Zealand	1	0.1%
34	Sri Lanka	1	0.1%