Statistics
| Year | Singing | Cast | |
|---|---|---|---|
| Not available | 1 | - | - |
| 1974 | 3 | - | - |
| 1975 | 2 | - | - |
| 1976 | 2 | - | - |
| 1977 | 12 | - | - |
| 1978 | 16 | - | - |
| 1979 | 19 | - | - |
| 1980 | 11 | - | - |
| 1981 | 6 | - | 1 |
| 1982 | 3 | - | - |
| 1983 | 5 | - | - |
| 1984 | 3 | - | 2 |
| 1985 | 4 | - | - |
| 1986 | 5 | - | - |
| 1987 | 1 | - | - |
| 1988 | 1 | - | - |
| 1992 | 3 | - | - |
| 1993 | 3 | - | - |
| 1994 | 2 | - | - |
| 1996 | 4 | - | - |