@TheSunIsStillShining the difficulty is in my view that the tiers only came into effect December 2nd - although that seems a lifetime ago. So with incubation period it’s probably less than a week of new cases since the tiers started.
I can say that at the beginning of lockdown overall the Tier 2 councils rate was just over 140 per 100,000 and Tier 3 close to 360.
At the end of lockdown Tier 2 overall just under 125 and Tier 3 just under 190.
By 9 December Tier 2 past 170 whilst Tier 3 up very slightly to just under 195.
But since end of lockdown half the Derbyshire districts still on a downward trajectory, but the other half showing a week on week increase.
Nottinghamshire came down across the board during lockdown, now 4/7 moving upwards, the other three still falling.
Majority in the north east - all tier 3 - still falling
North west the likes of Blackburn, Bolton, Bury still falling, very slight edging up in Manchester , Oldham, Salford. Manchester shows a big increase in the 15-19s but Tameside, Rochdale show big week on week falls.
It’s a mixed picture 