Get the date of the previous update, e.g 'Mar_2022'
See also
Other initialisation:
get_dd_period(),
latest_cost_year(),
latest_update(),
years_to_run()
Get the date of the previous update, e.g 'Mar_2022'
Other initialisation:
get_dd_period(),
latest_cost_year(),
latest_update(),
years_to_run()