This is around the level considered healthy and is also the ratioset by the widely ignored Maastricht agreement, which is meant to govern debt in the European Union.
That is a bigger adjustment than would be required of any other country, even allowing for the fact that the IMF set other nations a target debt-to-GDP ratio of 60%.
The techniques used in the AHP quantify relative priority for a given set of criteria on a ratio scale. AHP offers advantages over many other MCDA methods