## 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.team,
        )
        response = sorted(response, key=lambda item: item["breakdown_value"])
        self.assertEqual(len(response), 5)
        # 
        self.assertEqual(response[0]["breakdown_value"], "test2@posthog.com")
        self.assertEqual(response[1]["breakdown_value"], "test3@posthog.com")
        self.assertEqual(response[2]["breakdown_value"], "test4@posthog.com")
        self.assertEqual(response[3]["breakdown_value"], "test5@posthog.com")
        self.assertEqual(response[4]["breakdown_value"], "test@gmail.com")
        # 
        response = Trends().run(
            Filter(
                data={
                    "date_from": "2020-01-01 00:00:00",
                    "date_to": "2020-07-01 00:00:00",
                    "breakdown": "email",
                    "breakdown_type": "person",
                    "events": [
                        {
                            "id": "sign up",
                            "name": "sign up",
                            "type": "events",
                            "order": 0,
                            "properties": {
                                "type": "AND",
                                "values": [