Rank	Countries/Territories	Count	Percent
1	United States	415	28.7%
2	China	406	28.1%
3	Germany	116	8%
4	Korea, Republic of	88	6.1%
5	India	52	3.6%
6	Japan	41	2.8%
7	France	31	2.1%
8	Ireland	24	1.7%
9	Canada	21	1.5%
10	Netherlands	19	1.3%
11	Hong Kong	18	1.2%
12		16	1.1%
13	Romania	12	0.8%
14	Russia	12	0.8%
15	Taiwan	11	0.8%
16	Peru	11	0.8%
17	Kenya	10	0.7%
18	Australia	10	0.7%
19	Benin	10	0.7%
20	Brazil	10	0.7%
21	Sweden	8	0.6%
22	Portugal	8	0.6%
23	Singapore	7	0.5%
24	Israel	6	0.4%
25	Italy	5	0.3%
26	Libya	5	0.3%
27	Egypt	5	0.3%
28	United Kingdom	5	0.3%
29	Turkey	4	0.3%
30	Spain	4	0.3%
31	Poland	4	0.3%
32	Colombia	4	0.3%
33	Norway	4	0.3%
34	Indonesia	3	0.2%
35	Belgium	3	0.2%
36	Chile	3	0.2%
37	Switzerland	3	0.2%
38	Tanzania, United Republic of	3	0.2%
39	Thailand	2	0.1%
40	Ukraine	2	0.1%
41	Senegal	2	0.1%
42	Cabo Verde	2	0.1%
43	Estonia	2	0.1%
44	Finland	2	0.1%
45	Cyprus	2	0.1%
46	Czech Republic	2	0.1%
47	Kazakhstan	2	0.1%
48	Iran, Islamic Republic of	1	0.1%
49	Philippines	1	0.1%
50	Nigeria	1	0.1%
51	Croatia	1	0.1%
52	Austria	1	0.1%
53	Bangladesh	1	0.1%
54	Argentina	1	0.1%
55	Slovakia	1	0.1%
56	Saudi Arabia	1	0.1%