oct 14, 1981 - Accommodation Benefit - starts
Description:
 The component of Additional Benefit for accommodation costs was renamed as the Accommodation Benefit and the following changes made:
•	the maximum grant was increased from $16 to $18 per week;
•	the lowest accommodation costs (the rent or outgoings on a home) from which accommodation benefit can be paid was increase from $16 to $18 per week; and
•	an income exemption of $5 per week was allowed for single people (sole parents and married couples already had an income exemption of $8 per week).
Source: https://www.msd.govt.nz/about-msd-and-our-work/about-msd/history/social-assistance-chronology-programme-history.html 
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