Rank	Countries/Territories	Count	Percent
1	United States	648	43.1%
2	China	428	28.5%
3	Germany	178	11.8%
4	Japan	51	3.4%
5	France	38	2.5%
6	Netherlands	28	1.9%
7	India	16	1.1%
8	Singapore	15	1%
9		13	0.9%
10	Norway	11	0.7%
11	Russia	7	0.5%
12	Australia	7	0.5%
13	Cyprus	7	0.5%
14	Iran, Islamic Republic of	6	0.4%
15	Malaysia	5	0.3%
16	Hong Kong	4	0.3%
17	Argentina	4	0.3%
18	Canada	4	0.3%
19	Cuba	3	0.2%
20	Belgium	3	0.2%
21	Ireland	3	0.2%
22	Italy	2	0.1%
23	Colombia	2	0.1%
24	Mauritius	2	0.1%
25	New Zealand	2	0.1%
26	Korea, Republic of	2	0.1%
27	Latvia	2	0.1%
28	Poland	2	0.1%
29	Taiwan	2	0.1%
30	United Kingdom	2	0.1%
31	South Africa	1	0.1%
32	Switzerland	1	0.1%
33	Romania	1	0.1%
34	Mexico	1	0.1%
35	Mongolia	1	0.1%
36	Egypt	1	0.1%