(1) The annual exploration cap for an income year is the following amount:
(a) for the 2017 - 18 income year--$15 million;
(b) for the 2018 - 19 income year--$25 million, plus the * exploration credits remainder for the immediately preceding income year;
(c) for the 2019 - 20 income year--$30 million, plus the exploration credits remainder for the immediately preceding income year and any other amount prescribed for the purposes of this paragraph;
(d) for the 2020 - 21 income year--$30 million, plus the exploration credits remainder for the immediately preceding income year and any other amount prescribed for the purposes of this paragraph;
(e) for the 2021 - 22 income year--$25 million;
(f) for the 2022 - 23 income year--$25 million, plus the exploration credits remainder for the immediately preceding income year;
(g) for the 2023 - 24 income year--$25 million, plus the exploration credits remainder for the immediately preceding income year and any other amount prescribed for the purposes of this paragraph;
(h) for the 2024 - 25 income year--$25 million, plus the exploration credits remainder for the immediately preceding income year and any other amount prescribed for the purposes of this paragraph.
(2) If the total amount of * exploration credits allocated by the Commissioner for an income year is less than the * annual exploration cap for the year, the difference is the exploration credits remainder for the income year.