## Bug description

Monthly Active Users metric seems wrong when choosing "# Number" as chart type.

Number: 
![image](https://user-images.githubusercontent.com/513669/201980874-be7d9c0d-5c9c-4c1e-955c-ea4143c84061.png)

Line chart: 
![image](https://user-images.githubusercontent.com/513669/201980986-b17af929-84e5-4f6a-b7f8-23b7ac8bedbc.png)

**490 != 70**

## How to reproduce

1. Create a new insight using any event and the "Monthly active users" metric
2. Date range = This month + Grouped by = Day
3. Choose chart type as Number => remember value
4. Change chart type as Linear => check last data point

=> the 2 values do not match
=> in other words there's a diff between a total aggregation and an aggregation per bucket of time ?

## Environment

- [x] PostHog Cloud
posthog/queries/test/test_trends.py
self._create_active_users_events()
        data = {
            "date_from": "2020-01-09T06:00:00Z",
            "date_to": "2020-01-09T17:00:00Z",
            "interval": "hour",
            "events": [{"id": "$pageview", "type": "events", "order": 0, "math": "weekly_active"}],
        }
        filter = Filter(data=data)
        result = Trends().run(filter, self.team)
        self.assertEqual(
            result[0]["days"],
            [
                "2020-01-09 06:00:00",
                "2020-01-09 07:00:00",
                "2020-01-09 08:00:00",
                "2020-01-09 09:00:00",
                "2020-01-09 10:00:00",
                "2020-01-09 11:00:00",
                "2020-01-09 12:00:00",
                "2020-01-09 13:00:00",
                "2020-01-09 14:00:00",
                "2020-01-09 15:00:00",
                "2020-01-09 16:00:00",