pre_text: Changes in parameters on the basis of actuarial calculations led to a total increase in the present value of defined benefit obligations by €247 million (2017/18: €−24 million). Most of the effects result from the reduction of the applied invoice rates. The weighted average term of defined benefit commitments for the countries with material pension obligations amounts to:
table: Years 30/9/2018 30/9/2019
table: Germany 16 16
table: Netherlands 22 24
table: United Kingdom 18 18
table: Belgium 4 6
table: Other countries 11 11
question: Analyse this data from a financial earnings document. What was the change in the amount for Belgium in  FY2019 from FY2018?