pre_text: 9. Pensions continued Defined benefit plans continued iii) Amount, timing and uncertainty of future cash flows continued The liability has the following duration and maturity:
table: 2019 2018
table: Weighted average duration of the defined benefit obligation (years) 14 15
table: Maturity analysis of benefit payments (non-discounted amounts) $ million
table: Maturity ≤ 1 year 10.8 10.4
table: Maturity > 1 ≤ 5 years 45.6 43.2
table: Maturity > 5 ≤ 10 years 61.7 119.0
table: Maturity > 10 ≤ 20 years 114.3 103.0
table: Maturity > 20 ≤ 30 years 81.7 68.0
table: Maturity > 30 years 63.0 42.9
question: Analyse this data from a financial earnings document. What was the change in the benefit payments (non-discounted amounts) for maturity > 30 years?