The generated `statistics.json` does not reflect the correct data anymore due to changes to the keys.

[KristofVDB1]

Describe the bug A clear and concise description of what the bug is. The keys of the config file on the standaardenregister branch were changed and that probably broke the statistics-service.

To Reproduce Steps to reproduce the behavior: https://data.vlaanderen.be/standaarden/statistieken

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

[KristofVDB1]

{
    "numberOfTerms": 0,
    "numberOfStandardsConfigured": 1,
    "reportErrors": 0,
    "reportsMissing": 228,
    "uniqueContributors": 0,
    "uniqueAffiliations": 0,
    "standards": [
        {
            "standard": "null",
            "publicationDate": "null",
            "status": "null",
            "totalPeople": 0,
            "contributors": []
        }
    ]
}

[KristofVDB1]

https://vlaamseoverheid.atlassian.net/browse/SDTT-316

[KristofVDB1]

This has been resolved and is up and running again. Extra statistics can be added at a later point. Used file for the statistics is a combination of all the config files and https://github.com/Informatievlaanderen/data.vlaanderen.be-statistics/blob/production/aggr.stat