To finish 1 point above 23rd place :-
45 points were enough in 5 seasons.
46 points were enough in 6 seasons.
47 points were enough in 8 seasons.

To finish 1 point above 8th place :-
70 points were enough in 5 seasons.
71 points were enough in 6 seasons.
72 points were enough in 8 seasons.

To finish 1 point above 4th place :-
79 points were enough in 5 seasons. Similarly, 80 points were enough in 5 seasons.
81 points were enough in 7 seasons. Similarly, 82 points were enough in 7 seasons.
83 points were enough in 8 seasons.