What total number of (a) offenders were registered on the Child Protection Register in each province for the periods (i) 1 January 2017 to 31 December 2017, (ii) 1 January 2018 to 31 December 2018, (iii) 1 January 2019 to 31 December 2019, (iv) 1 January 2020 to 31 December 2020 and (v) 1 January 2021 to 31 December 2021 and (b) applications were received through (i) a Form 29 (Annexure B of the Regulations) and (ii) a Form 30 in each province for each period?