How to show montly costs in time chart

Thanks Clive_Watson for you response.

I removed the formatting of the Billing column in the 'Column Setting' popup.

Resulting in these date values:
2022-09-01T00:00:00
2022-08-01T00:00:00
2022-07-01T00:00:00

But I still can't create any chart. This is my json result:

{
    "id": "subscriptions/**/resourcegroups/**/providers/Microsoft.CostManagement/query/**",
    "name": "**",
    "type": "Microsoft.CostManagement/query",
    "location": null,
    "sku": null,
    "eTag": null,
    "properties": {
        "nextLink": null,
        "columns": [
            {
                "name": "Cost",
                "type": "Number"
            },
            {
                "name": "BillingMonth",
                "type": "Datetime"
            },
            {
                "name": "Currency",
                "type": "String"
            }
        ],
        "rows": [
            [
                43.19129521752406,
                "2022-09-01T00:00:00",
                "EUR"
            ],
            [
                61.30075222086911,
                "2022-08-01T00:00:00",
                "EUR"
            ],
            [
                37.593943340208604,
                "2022-07-01T00:00:00",
                "EUR"
            ]
        ]
    }
}

In this block I get the data:

I probably need to do some additional formatting, but I'm not sure how and where.