Rank	Countries/Territories	Count	Percent
1	United States	539	38.3%
2	China	291	20.7%
3	Germany	109	7.8%
4	Korea, Republic of	81	5.8%
5	India	72	5.1%
6	Japan	47	3.3%
7	Canada	35	2.5%
8	Netherlands	24	1.7%
9	Ireland	17	1.2%
10	Norway	16	1.1%
11	Hong Kong	16	1.1%
12	United Kingdom	16	1.1%
13	Singapore	9	0.6%
14	Czech Republic	9	0.6%
15	Nigeria	9	0.6%
16	Colombia	8	0.6%
17	Turkey	8	0.6%
18	Philippines	7	0.5%
19	Portugal	7	0.5%
20	Ecuador	7	0.5%
21	Cyprus	6	0.4%
22	Australia	6	0.4%
23	Mexico	5	0.4%
24	Russia	5	0.4%
25	Viet Nam	4	0.3%
26	Indonesia	4	0.3%
27	France	3	0.2%
28	Kenya	3	0.2%
29	Cameroon	3	0.2%
30	Thailand	3	0.2%
31	South Sudan	3	0.2%
32	Romania	2	0.1%
33	Mauritius	2	0.1%
34	Taiwan	2	0.1%
35	Yemen	2	0.1%
36	Ethiopia	2	0.1%
37	Argentina	2	0.1%
38	Bulgaria	2	0.1%
39	Chile	2	0.1%
40	Kazakhstan	2	0.1%
41	Pakistan	2	0.1%
42	Papua New Guinea	1	0.1%
43	Mongolia	1	0.1%
44	Liberia	1	0.1%
45	Malaysia	1	0.1%
46	Iraq	1	0.1%
47	Italy	1	0.1%
48	Bangladesh	1	0.1%
49	Egypt	1	0.1%
50	Denmark	1	0.1%
51	Tanzania, United Republic of	1	0.1%
52	Serbia	1	0.1%
53	Sweden	1	0.1%
54	Switzerland	1	0.1%
55	Somalia	1	0.1%