Rank	Countries/Territories	Count	Percent
1	United States	268	38.1%
2	China	148	21.1%
3	Germany	66	9.4%
4	Japan	38	5.4%
5	India	34	4.8%
6	Ireland	17	2.4%
7	Australia	10	1.4%
8	Canada	10	1.4%
9	Netherlands	9	1.3%
10	Philippines	9	1.3%
11	Mexico	8	1.1%
12	Iran, Islamic Republic of	7	1%
13	Ukraine	7	1%
14	France	6	0.9%
15	Egypt	6	0.9%
16	Russia	5	0.7%
17	United Kingdom	4	0.6%
18	Croatia	4	0.6%
19	Cyprus	4	0.6%
20	Brazil	4	0.6%
21	Malaysia	4	0.6%
22	Singapore	4	0.6%
23	Korea, Republic of	3	0.4%
24	Morocco	3	0.4%
25	Saudi Arabia	3	0.4%
26	United Arab Emirates	2	0.3%
27	Turkey	2	0.3%
28	Mongolia	2	0.3%
29	Pakistan	2	0.3%
30	Portugal	2	0.3%
31	Romania	1	0.1%
32	Spain	1	0.1%
33	Switzerland	1	0.1%
34	Syrian Arab Republic	1	0.1%
35	Nepal	1	0.1%
36	Nigeria	1	0.1%
37	Norway	1	0.1%
38	Chile	1	0.1%
39	Finland	1	0.1%
40	Georgia	1	0.1%
41	Hong Kong	1	0.1%
42	Israel	1	0.1%