2021 was the
League's 125th year of competition.
This span can be divided into five 25 year periods. The tables
links on this page attempt to give an indication of each team's
performance in different categories in each of the five 25
Teams have have competed fewer than two fifths of the time
have their seasons in the competition divided into two halves.
Teams that did not compete for the
whole of any period are included
of Seasons for details each team's seasons in the