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| Source:   DBT for roofing tiles and Mineral Products Association for ready-mixed   concrete | 
| Year | Concrete roofing tiles production | Concrete roofing tiles deliveries | Concrete roofing tiles stocks | Ready-mixed concrete deliveries | Seasonally adjusted ready-mixed   concrete deliveries [note 3, 4] | 
| 2011 | 17,712 | 17,684 | 3,126 | 15,121 | 15,121 | 
| 2012 | 17,476 | 17,578 | 3,061 | 13,758 | 13,758 | 
| 2013 | 18,745 | 19,580 | 2,214 | 15,089 | 15,089 | 
| 2014 | 24,086 | 23,058 | 3,275 | 15,348 | 15,348 | 
| 2015 | 25,105 | 24,475 | 3,904 | 16,294 | 16,294 | 
| 2016 | 24,615 | 25,833 | 2,689 | 17,670 | 17,670 | 
| 2017 | 26,111 | 25,741 | 2,492 | 17,209 | 17,209 | 
| 2018 | 26,931 | 26,109 | 5,903 | 17,060 | 17,060 | 
| 2019 | 25,233 | 26,243 | 3,954 | 16,426 | 16,426 | 
| 2020 | 21,205 | 22,056 | 2,233 | 13,440 | 13,440 | 
| 2021 | 26,346 | 25,973 | 2,417 | 15,329 | 15,329 | 
| 2022 | 24,416 | 23,389 | 3,697 | 14,752 | 14,867 | 
| 2023 | 27,161 | 26,826 | 3,491 | 13,837 | 13,837 |