The Total column shows the total number of people in that county or town with this surname.
For example, there were 2,001 people called CATTANACH in Kingussie Insh 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 2371.5415 in Kingussie Insh means that
2371.5415% of the people in Kingussie Insh on census day were called CATTANACH.
The Index column shows the relative probability of finding someone called CATTANACH
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 CATTANACH 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 CATTANACH 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 CATTANACH here than in the UK as a whole, and 10 would make it ten times as likely.
The value of 2.00 in Kingussie Insh means that you are 2.00 times as likely to find
someone with the surname of CATTANACH in Kingussie Insh than you would be in the whole of the UK.