39 Net d eb t and ne t de btE BIT D A r atio 5 ye ars K GH M Gr ou p 6 554 7 262 6 577 7 000 6 891 2015 2016 2017 2018 2019 14 16 13 16 15 2015 2016 2017 2018 2019 N e t d e b t m n P L N N e t d e b t ad ju st e d EBI TDA r a t io