Data is collected using the cron schedule:
'11 * * * *' Each hour at 11
Each month's fuel price changes are published on: Fuel Price Reporting.
Once downloaded, the file is saved to data/month folder.
The daily scrape was made to fill the gap after the last published month (I assume less than 2 months).
Scraped records are saved to a .csv file inside data/week folder. Each week has a separate file in the format [year]_[week].csv.
For example, we have the 31st week of the year 2021, the file will be named 21_31.csv.
You need to request for access token from https://www.fuelpricesqld.com.au/ ("Signing-up as a publisher or data consumer") for weekly data.
If you want to work on historic data older than 2 months, it's better to just use Fuel Price Reporting monthly data.