## Is your feature request related to a problem?

Compare year to date
![image](https://user-images.githubusercontent.com/1727427/101010122-8044ed00-3562-11eb-8be1-8462250ef97a.png)

With last 90 days [(link)](https://app.posthog.net/insights?display=ActionsBar&events=%5B%7B%22id%22%3A%22%24pageview%22%2C%22name%22%3A%22%24pageview%22%2C%22type%22%3A%22events%22%2C%22order%22%3A0%2C%22math%22%3A%22total%22%7D%5D&shown_as=Lifecycle&actions=%5B%5D&properties=%5B%7B%22key%22%3A%22%24current_url%22%2C%22value%22%3A%22https%3A%2F%2Fposthog.com%22%2C%22operator%22%3A%22not_icontains%22%2C%22type%22%3A%22event%22%7D%2C%7B%22key%22%3A%22id%22%2C%22value%22%3A71%2C%22type%22%3A%22cohort%22%7D%5D&interval=week&date_from=-90d)
![image](https://user-images.githubusercontent.com/1727427/101010537-9f437f00-3562-11eb-8e9f-a7e75f0018f5.png)


## Describe the solution you'd like



## Describe alternatives you've considered



## Additional context



#### *Thank you* for your feature request – we love each and every one!

posthog/queries/test/test_trends.py
person1 = person_factory(team_id=self.team.pk, distinct_ids=["person_1"], properties={"name": "John"})
            person2 = person_factory(team_id=self.team.pk, distinct_ids=["person_2"], properties={"name": "Jane"})
            event1 = event_factory(
                event="event_name", team=self.team, distinct_id="person_1", properties={"$browser": "Safari"},
            )
            event2 = event_factory(
                event="event_name", team=self.team, distinct_id="person_2", properties={"$browser": "Chrome"},
            )
            event3 = event_factory(
                event="event_name", team=self.team, distinct_id="person_2", properties={"$browser": "Safari"},
            )
            cohort = cohort_factory(team=self.team, name="cohort1", groups=[{"properties": {"name": "Jane"}}])
            response = trends().run(
                Filter(
                    data={
                        "properties": [{"key": "id", "value": cohort.pk, "type": "cohort"}],
                        "events": [{"id": "event_name"}],
                    }
                ),
                self.team,
            )
            self.assertEqual(response[0]["count"], 2)
            self.assertEqual(response[0]["data"][-1], 2)
        def test_date_filtering(self):