Victorian Places?

QUIZ - what does the following ranking show? Why is London at the top, and Kokomo (as in 'Key Largo, Montego, baby why don't we go ...') above Paris. Ah, mes amis, the shame of it.

It's a frivolous answer, as random lists go, so don't think too hard. It relates to the last few days, since I discovered something pretty amazing on the Internet, which I should have discovered ages ago.

There is a prize ... if you're on Twitter, twitter the answer with tag @victorianlondon and the first correct answer gets a free copy of London Dust, my first novel (that's if you want a copy, of course - I won't lit-spam your home without some encouragement). If no-one twitters - and it's quite likely - then answers in comments below will suffice!

Here's the list:-

1.	London
2.	Dublin
3.	New York
4.	Manchester
5.	unknown
6.	Birmingham
7.	Sydney
8.	Melbourne
9.	Glasgow
10.	Bristol
11.	Edinburgh
12.	Wembley
13.	Belfast
14.	Leeds
15.	Sheffield
16.	Brisbane
17.	Los Angeles
18.	Reading
19.	Cambridge
20.	Nottingham
21.	Luton
22.	Oakland
23.	Auckland
24.	Oxford
25.	Newcastle upon Tyne
26.	Kokomo
27.	Paris
28.	Liverpool
29.	Salisbury
30.	Blackwood
31.	Chicago
32.	Milton Keynes
33.	Toronto
34.	Cardiff
35.	Salford
36.	Edgbaston
37.	York
38.	Perth
39.	Sale
40.	Basildon
41.	Madrid
42.	Leicester
43.	Virginia Beach
44.	Boone
45.	Coventry
46.	Moscow
47.	Rotherham
48.	San Francisco
49.	Chatham
50.	Wolverhampton