Rank	Countries/Territories	Count	Percent
1	United States	504	38.6%
2	China	302	23.1%
3	Germany	152	11.6%
4	Brazil	83	6.4%
5	India	70	5.4%
6	Japan	33	2.5%
7	Ireland	25	1.9%
8		19	1.5%
9	Canada	16	1.2%
10	Netherlands	12	0.9%
11	Korea, Republic of	9	0.7%
12	Australia	8	0.6%
13	France	8	0.6%
14	United Kingdom	8	0.6%
15	Taiwan	7	0.5%
16	Singapore	6	0.5%
17	Spain	5	0.4%
18	Sweden	5	0.4%
19	Ukraine	5	0.4%
20	Cyprus	4	0.3%
21	Colombia	3	0.2%
22	Lithuania	2	0.2%
23	Mongolia	2	0.2%
24	Hong Kong	2	0.2%
25	Switzerland	2	0.2%
26	Slovenia	2	0.2%
27	Norway	2	0.2%
28	Philippines	2	0.2%
29	Poland	2	0.2%
30	Romania	1	0.1%
31	Russia	1	0.1%
32	Latvia	1	0.1%
33	Egypt	1	0.1%
34	Austria	1	0.1%