Household income per capita is a bit confusing, can't blame anyone for interpreting this way. But from the glossary "Household real income per capita is the adj

Household income per capita is a bit confusing, can't blame anyone for interpreting this way. But from the glossary "Household real income per capita is the adjusted gross disposable income of households, in nominal terms, divided by the total population (source: national accounts) and by the deflator (price index) of household actual final consumption. " So it's not divided per household. But the point about working hours remains.