I think that United match (4-2 loss) was also Aguero’s 100th goal for City in all competitions. Towards the end of his 4th season.I had to calculate it by hand on the tranfermarkt until I came up with the figure for comparison.
Our legend Sergio Aguero scored his 70th goal in the EPL in his 114th league game on 04/12/2015 against Man Utd.
Haaland's numbers are miraculous, if only to avoid injury throughout his career like Ronaldo or Lewandowski.
It can be objected to these statistics that Aguero did not have a strong team like Haaland has today in his first three seasons.
But Kun had the same, if not a stronger set of teammates in the period 2017-2019, so he didn't have these numbers again.
Haaland is about to do that at the start of his 3rd season.