What it cost you
What it cost you
The same arithmetic, expressed in terms of a household.
Period calculator
Select any range of dates to see the spread captured within it, calculated day by day.
Captured in the selected period
BLoading the daily series
Household share over a working life
A calculator estimating a household's share of the captured spread across a working life.
Under investigationLast checked 2026-08-01
This section is being built. The structure below is settled; the content is still being sourced and verified.