divisions_ACT           Allhomes ACT suburb (division) names and IDs
divisions_NSW           Allhomes NSW suburb (division) names and IDs
extract_past_sales_data
                        Extract Allhomes past sales data for a single
                        division ID and year.
get_ah_division_ids     Get Allhomes division (suburb) IDs (name,
                        state, postcode, ID).
get_past_sales_data     Extract Allhomes past sales data for a/multiple
                        suburb(s) and year(s).
