@Override
    public synchronized List<GovernmentBodyAnnualOutcomeSummary> readIncomeCsv() throws IOException {
        if (incomeCsvValues == null) {
            incomeCsvValues = readUsingZipInputStream(Request.Get(
                "https://www.esv.se/OpenDataManadsUtfallPage/GetFile?documentType=Inkomst&fileType=Zip&fileName=M%C3%A5nadsutfall%20inkomster%20januari%202006%20-%20augusti%202023,%20definitivt.zip&Year=2023&month=8&status=Definitiv")