Rank	Countries/Territories	Count	Percent
1	United States	220	30.9%
2	China	136	19.1%
3	Germany	93	13.1%
4	India	59	8.3%
5	Puerto Rico	33	4.6%
6	Japan	24	3.4%
7	Netherlands	19	2.7%
8	Ireland	18	2.5%
9	Australia	12	1.7%
10	United Kingdom	11	1.5%
11	France	10	1.4%
12	Singapore	8	1.1%
13	Chile	7	1%
14	Canada	5	0.7%
15	Indonesia	5	0.7%
16	Korea, Republic of	5	0.7%
17	Poland	4	0.6%
18	Slovakia	4	0.6%
19	Brazil	4	0.6%
20	Hong Kong	3	0.4%
21	Romania	3	0.4%
22	Russia	2	0.3%
23	Spain	2	0.3%
24	Switzerland	2	0.3%
25	Thailand	2	0.3%
26	Pakistan	2	0.3%
27	Lebanon	2	0.3%
28	Italy	2	0.3%
29	Belgium	2	0.3%
30	Cyprus	2	0.3%
31	Czech Republic	2	0.3%
32	Zimbabwe	2	0.3%
33	Egypt	1	0.1%
34	Argentina	1	0.1%
35	Iran, Islamic Republic of	1	0.1%
36	Nepal	1	0.1%
37	Ukraine	1	0.1%
38	South Africa	1	0.1%