The Total column shows the total number of people in that county or town with this surname.
For example, there were 101,418 people called JUMP in West Derby at the time of the 1881 census.
The Frequency column shows the percentage of people in this county or town
with this surname. For example, a frequency of 31.5983 in West Derby means that
31.5983% of the people in West Derby on census day were called JUMP.
The Index column shows the relative probability of finding someone called JUMP
in this county or town, compared with the probability of finding them anywhere in Britain as a whole.
An index of 1 means that if you pick someone at random from this county or town, you have exactly the same
probability of picking someone called JUMP as if you picked at random from the whole of the UK.
Where the index is higher than 1, then you are more likely to find someone called JUMP here
than if you picked from the UK as a whole, and where it's lower then you are less likely. The actual figure
shows the level of probability - for example, a figure of 2 would indicate that you are twice as likely to find
someone called JUMP here than in the UK as a whole, and 10 would make it ten times as likely.
The value of 101.42 in West Derby means that you are 101.42 times as likely to find
someone with the surname of JUMP in West Derby than you would be in the whole of the UK.