Infrastructure Economic Accounts, average age and remaining useful service life ratio by asset and asset function (English, French, XML)

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Publisher-reported update

2026-06-12

The average age of investment is the weighted age of all investments remaining in the gross stock at year end. The remaining useful life, which is the difference between the average age of the investment spending and their expected service life, is then divided by the expected service life, creating a ratio that indicates the percentage of the asset class that remains.

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