_id	Reference period	Reference date	Reference year	Household type	Mean household pre-benefit income per week	Mean household gross income per week	Mean household net income per week, before housing costs	Mean household net income per week, after housing costs
1	2009/2010	2009-12-31T00:00:00	2009	All households	1000	1050	840	710
2	2014/2015	2014-12-31T00:00:00	2014	All households	1020	1070	860	720
3	2019/2020	2019-12-31T00:00:00	2019	All households	1240	1290	1040	890
4	2021/2022	2022-03-31T00:00:00	2022	All households	1320	1380	1080	930