The Total column shows the total number of people in that county or town with this surname.
For example, there were 450 people called RAISBECK in Crawcrook 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 1162.7907 in Crawcrook means that
1162.7907% of the people in Crawcrook on census day were called RAISBECK.
The Index column shows the relative probability of finding someone called RAISBECK
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 RAISBECK 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 RAISBECK 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 RAISBECK here than in the UK as a whole, and 10 would make it ten times as likely.
The value of 0.45 in Crawcrook means that you are 0.45 times as likely to find
someone with the surname of RAISBECK in Crawcrook than you would be in the whole of the UK.