Rank	Countries/Territories	Count	Percent
1	United States	488	38.5%
2	China	259	20.4%
3	Japan	79	6.2%
4	Egypt	59	4.7%
5	Germany	59	4.7%
6	Ireland	50	3.9%
7	India	31	2.4%
8	United Kingdom	30	2.4%
9	Australia	23	1.8%
10	Korea, Republic of	16	1.3%
11	Russia	16	1.3%
12	France	13	1%
13	Taiwan	13	1%
14	Canada	12	0.9%
15	Brazil	11	0.9%
16	Italy	11	0.9%
17	Netherlands	10	0.8%
18	Hong Kong	10	0.8%
19	Ukraine	8	0.6%
20	Sweden	8	0.6%
21	Singapore	7	0.6%
22	Iran, Islamic Republic of	6	0.5%
23	Argentina	6	0.5%
24	Spain	5	0.4%
25	Turkey	3	0.2%
26	Viet Nam	3	0.2%
27	Luxembourg	3	0.2%
28	Lebanon	2	0.2%
29	Israel	2	0.2%
30	Poland	2	0.2%
31	Mexico	2	0.2%
32	Romania	2	0.2%
33	Austria	2	0.2%
34	Cyprus	2	0.2%
35	Denmark	2	0.2%
36	Ethiopia	1	0.1%
37	Finland	1	0.1%
38	Czech Republic	1	0.1%
39	Chile	1	0.1%
40	Senegal	1	0.1%
41	Morocco	1	0.1%
42	Nepal	1	0.1%
43	Portugal	1	0.1%
44	Kazakhstan	1	0.1%
45	Malaysia	1	0.1%
46	Slovenia	1	0.1%
47	South Africa	1	0.1%
48	Switzerland	1	0.1%