Rank	Countries/Territories	Count	Percent
1	United States	648	45.5%
2	China	400	28.1%
3	Germany	125	8.8%
4	Australia	28	2%
5	Korea, Republic of	28	2%
6	India	25	1.8%
7	France	20	1.4%
8	Canada	19	1.3%
9	Japan	18	1.3%
10	Ireland	16	1.1%
11	Taiwan	15	1.1%
12	United Kingdom	13	0.9%
13	Netherlands	10	0.7%
14	Singapore	7	0.5%
15	Iran, Islamic Republic of	6	0.4%
16	Cyprus	6	0.4%
17	Russia	5	0.4%
18	Norway	4	0.3%
19	Hong Kong	4	0.3%
20	Argentina	3	0.2%
21	Mexico	3	0.2%
22	Romania	3	0.2%
23	Portugal	2	0.1%
24	Pakistan	2	0.1%
25	Ukraine	2	0.1%
26	Spain	2	0.1%
27	Bangladesh	2	0.1%
28	Italy	2	0.1%
29	Belgium	1	0.1%
30	Egypt	1	0.1%
31	Finland	1	0.1%
32	Colombia	1	0.1%
33	Turkey	1	0.1%
34	Poland	1	0.1%
35	Mongolia	1	0.1%