Rank	Countries/Territories	Count	Percent
1	United States	635	38.6%
2	China	537	32.6%
3	Germany	183	11.1%
4	Ireland	42	2.6%
5	Italy	36	2.2%
6	Korea, Republic of	25	1.5%
7	India	19	1.2%
8		19	1.2%
9	Japan	18	1.1%
10	Singapore	17	1%
11	Canada	16	1%
12	Russia	15	0.9%
13	Netherlands	10	0.6%
14	Hong Kong	10	0.6%
15	Australia	9	0.5%
16	Iran, Islamic Republic of	9	0.5%
17	Cyprus	8	0.5%
18	France	5	0.3%
19	United Kingdom	5	0.3%
20	Belgium	4	0.2%
21	Latvia	3	0.2%
22	Taiwan	3	0.2%
23	Thailand	3	0.2%
24	Slovakia	2	0.1%
25	Norway	2	0.1%
26	Poland	2	0.1%
27	Lithuania	2	0.1%
28	Mongolia	1	0.1%
29	Israel	1	0.1%
30	Argentina	1	0.1%
31	Portugal	1	0.1%
32	Philippines	1	0.1%
33	Sweden	1	0.1%