No consistency check on price year for exposure data and census data and no user-choice which price year to use.

[kathrynroscoe]

Preliminary Checklist

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Severity Level

Low

Steps to reproduce

A user can currently use NSI data, which has a specific price year (we think 2021, to be confirmed), and then choose census data from a different year, without any correction for price-year differences. We'd like to have a user specify a price-year (for example, 2024), and then both the NSI and the census are converted to that price year. This is the same year we should use for our 'current year' when we do cost benefit analysis in FloodAdapt (i.e. this should be passed to the FloodAdapt site toml)

Current behaviour

No consistency between NSI price year and Census year, and no ability for the user to specify a price-year.

Desired behaviour

There are consistency checks and corrections to ensure NSI and Census are in same price-year, and allow the user to select the price year they want to use in FloodAdapt.

Additional context

We will need to have the price-year corrections somewhere