This change alone accounts for almost all of the increase in the liability since changes in other variables (such as new members, service cost and interest cost) were in line with the previous year's figures.
Skoraj celotno povečanje obveznosti izhaja izključno iz te spremembe, saj so bile spremembe ostalih spremenljivk (kot so novi člani, stroški službovanja in stroški obresti) podobne kot v preteklih letih.