Rank	Countries/Territories	Count	Percent
1	United States	661	39.9%
2	China	357	21.6%
3	Germany	176	10.6%
4	France	53	3.2%
5	United Kingdom	48	2.9%
6	Netherlands	39	2.4%
7	Canada	27	1.6%
8	Russia	24	1.4%
9	Japan	23	1.4%
10	India	21	1.3%
11	Ireland	19	1.1%
12	Singapore	17	1%
13	Sweden	14	0.8%
14	Australia	14	0.8%
15	Nigeria	12	0.7%
16	Italy	12	0.7%
17	Turkey	11	0.7%
18	Korea, Republic of	10	0.6%
19	Iran, Islamic Republic of	9	0.5%
20	Poland	9	0.5%
21	Denmark	8	0.5%
22	Egypt	8	0.5%
23	Romania	7	0.4%
24	Taiwan	5	0.3%
25	Saudi Arabia	5	0.3%
26	Finland	5	0.3%
27	Hong Kong	5	0.3%
28	Hungary	4	0.2%
29	Cyprus	4	0.2%
30	Israel	4	0.2%
31	South Africa	4	0.2%
32	Spain	4	0.2%
33	Pakistan	3	0.2%
34	Malaysia	3	0.2%
35	Czech Republic	3	0.2%
36	Belgium	3	0.2%
37	Brazil	2	0.1%
38	Algeria	2	0.1%
39	Ghana	2	0.1%
40	Malta	2	0.1%
41	Indonesia	2	0.1%
42	Norway	2	0.1%
43	Switzerland	2	0.1%
44	Tunisia	2	0.1%
45	Ukraine	2	0.1%
46	Viet Nam	2	0.1%
47	Sri Lanka	1	0.1%
48	Portugal	1	0.1%
49	Iraq	1	0.1%
50	Argentina	1	0.1%
51	Bulgaria	1	0.1%