This appears to be a pilot for a series that never happened.
7.0
1950
1941
10.0
2000
7.2
2010
9.0
2018
0.0
1957
2023
5.8
2005
6.2
1990
2025
7.1
1921
5.3
1978
7.4
1982
1976
2024
1939
5.0
8.3