7. Section 13 of the Principal Act is amended in subsection (2) —
(a) in paragraph (a), by the substitution of “for the years 2013, 2014, 2015, 2016, 2017, 2018 and 2019” for “for the years 2013, 2014, 2015 and 2016”, and
(b) in paragraph (b), by the substitution of “year 2019” for “year 2016”.
