SEPTEMBER KEY FIGURES

		Sep Qtr 17	Jun Qtr 17 to Sep Qtr 17	Sep Qtr 16 to Sep Qtr 17
		$m	% change	% change
TREND ESTIMATES(a)
Value of work done
	For the private sector	12 586.5	-0.7	-4.2
	For the public sector(b)	8 935.0	4.5	20.8
	Total engineering construction	21 552.8	1.6	4.9
SEASONALLY ADJUSTED ESTIMATES(a)
Value of work done
	For the private sector	25 204.8	46.8	93.4
	For the public sector(b)	9 091.0	6.9	24.9
	Total engineering construction	34 295.8	33.6	68.9
(a) Reference year for chain volume measures is 2015-16.
(b) Includes work done by the private sector for the public sector and work done by the public sector.

Value of work done, Chain volume measures

Value of work done, Chain volume measures - Trend estimates

SEPTEMBER KEY POINTS


VALUE OF WORK DONE, CHAIN VOLUME MEASURES

TOTAL

• The trend estimate for the value of total engineering construction work done rose 1.6% in the September 2017 quarter.
• The seasonally adjusted estimate for the value of total engineering construction work done rose 33.6% in the September quarter to $34,295.8m.

PRIVATE SECTOR

• The trend estimate for the value of work done for the private sector fell 0.7% in the September quarter.
• The seasonally adjusted estimate for the value of work done for the private sector rose 46.8% in the September quarter to $25,204.8m.

PUBLIC SECTOR

• The trend estimate for the value of work done for the public sector rose 4.5% in the September quarter.
• The seasonally adjusted estimate for the value of work done for the public sector rose 6.9% in the September quarter to $9,091.0m.

VALUE OF WORK COMMENCED, CURRENT PRICES

• The value of work commenced in the September quarter was $25,522.0m in original terms, an increase of 51.7% from the June quarter.

NOTES

FORTHCOMING ISSUES

ISSUE (QUARTER)	Release Date
December 2017	28 March 2018
March 2018	27 June 2018

ABOUT THIS ISSUE

This publication updates the preliminary estimates released in Construction Work Done, Australia (cat. no. 8755.0) on 22 November 2017.


CHANGES THIS ISSUE

A new base year, 2015-2016, has been introduced into the chain volume estimates which has resulted in revisions to growth rates in subsequent periods. In addition, the chain volume measures have been re-referenced to 2015-2016, preserving additivity in the quarters after the reference year. Re-referencing affects the levels, but not the movements in, chain volume estimates.


DATA NOTE

This release includes revisions to Engineering Construction data back to June 2017.

Several time series spreadsheets for recent quarters contain 'np' (not available for publication) annotations. This is due to confidential data being contained in these series.

Trend estimates should be used with caution due to the volatility caused by large engineering projects. For more details on trend estimates, please see paragraphs 22 to 24 of the explanatory notes.

Mining projects tend to be complex in structure and comprise a number of different investment activities including exploration, engineering construction, plant and equipment and buildings. A feature article released in the March 2012 issue of Private New Capital Expenditure and Expected Expenditure, Australia (cat. no. 5625.0) provides a summary of the conceptual basis of the relevant ABS publications that measure investment in Australia, using a hypothetical mining project to illustrate how this investment is reflected in ABS data.


INQUIRIES

For further information about these and related statistics, contact the National Information and Referral Service on 1300 135 070. The ABS Privacy Policy outlines how the ABS will handle any personal information you provide to us.