Rank	Countries/Territories	Count	Percent
1	United States	332	38.1%
2	China	286	32.8%
3	Germany	81	9.3%
4	Japan	39	4.5%
5	Ireland	19	2.2%
6	Singapore	15	1.7%
7	Canada	14	1.6%
8	Spain	11	1.3%
9	Sweden	8	0.9%
10	Cyprus	8	0.9%
11	Korea, Republic of	7	0.8%
12	India	6	0.7%
13	Iran, Islamic Republic of	6	0.7%
14	Netherlands	6	0.7%
15	France	5	0.6%
16	Italy	4	0.5%
17	Romania	2	0.2%
18	Norway	2	0.2%
19	Philippines	2	0.2%
20	United Kingdom	2	0.2%
21	Argentina	2	0.2%
22	Australia	2	0.2%
23	Belgium	2	0.2%
24	Brazil	2	0.2%
25	Israel	2	0.2%
26	Lebanon	1	0.1%
27	Lithuania	1	0.1%
28	Mongolia	1	0.1%
29	Hong Kong	1	0.1%
30	Ukraine	1	0.1%
31	Portugal	1	0.1%
32	Russia	1	0.1%