| Year |
Total Releases |
Number of Top 30 Successes |
% of releases that were hits |
| 1954 |
117 |
3 |
2.6% |
| 1955 |
106 |
4 |
3.8% |
| 1956 |
139 |
23 |
16.5% |
| 1957 |
175 |
35 |
20% |
| 1958 |
242 |
34 |
14% |
| 1959 |
235 |
42 |
17.9% |
| 1960 |
238 |
30 |
12% |
| 1961 |
224 |
40 |
17.9% |
| 1962 |
165 |
18 |
10.9% |
| 1963 |
178 |
18 |
10.1% |
| 1964 |
111 |
8 |
7.2% |
| 1965 |
73 |
11 |
15.1% |
| 1966 |
88 |
8 |
9.1% |
| 1967 |
74 |
2 |
2.7% |
| 1968 |
60 |
2 |
3.3% |
| 1969 |
60 |
3 |
5% |
| 1970 |
27 |
1 |
3.7% |
Talking about top 30 success, the following artists had all the hits...
169 (54%) of London's 309 top 30 entries were by 17 artists
The US labels that were the most successful with London releases in the Top 30
Jamie was totally Duane Eddy and Monument was totally Roy Orbison (Roy also had hits from M-G-M).