E ai ki ngā tatauranga, i hangaia e Haina te 5.52 miriona tana o ngā paipa maitai whakarewa i te marama o Ākuhata, he tipu tēnei mā te 4.2% ki te whakataurite ki te marama kotahi o te tau i mua.

I ngā marama tuatahi e waru o tēnei tau, ko te hanga paipa maitai whakarewa o Haina i eke ki te 37.93 miriona tana, he pikinga tau-ki-te-tau o te 0.9%.