No fixed weights exist, so totals reflect summed industry responses rather than preset shares.
- Buildings and structures: captures industrial and commercial buildings, homes, roads, bridges, pipelines, power lines and mine development.
- Equipment, plant and machinery: captures plant, machinery, vehicles, office gear and first-time imports, even if used abroad before.
- Mining vs non-mining: shows the headline industry split published every quarter.
- Selected industries and states: breaks down actual spending across 17 industries and states, with state expectations only in December quarters.
- Expected expenditure and realisation ratios: tracks financial-year spending plans, adjusted for past gaps between expected and actual amounts.
The December quarter of 2023 (published February 29, 2024) showed spending up 0.8% to $40,061m, 7.9% higher than a year earlier, with trend at 0.9%. Buildings and structures rose 1.5% to $21,712m, but equipment, plant and machinery fell 0.1% to $18,349m, so the headline hid a split. Mining rose 1.1% and non-mining rose 0.6%, with electricity, gas, water and waste up 14.7% on renewable energy infrastructure. Estimate 1 for 2024-25 was $145.6b, 12.6% above Estimate 1 for 2023-24, showing why both asset splits always matter.