NOTES
FORTHCOMING ISSUES
| ISSUE | Release Date |
| September 2007 | 17 October 2007 |
| October 2007 | 16 November 2007 |
| November 2007 | 18 December 2007 |
| December 2007 | 17 January 2008 |
| January 2008 | 18 February 2008 |
| February 2008 | 19 March 2008 |
DATA NOTES
For the reference month, the estimates presented in this publication provide an early indication of short-term visitor arrival movements prior to final data becoming available. Monthly data prior to the reference month are final estimates. The ABS encourages users of these data to refer to the ABS monthly publication,
Overseas Arrivals and Departures, Australia (cat. no. 3401.0) for final ABS estimates of short-term visitor arrivals for the reference period. Final estimates for August 2007 will be released on 8 October 2007.
This publication contains movement data. Care should be taken when interpreting this movement data as 'people'. See Explanatory Note 6.
Calculations of percentage and numeric change as shown in the Main Features of this publication are based on unrounded data. See Explanatory Note 10.
Original estimates are influenced by seasonal and one-off or irregular factors which may distort interpretations of the underlying growth in the series. Therefore, the ABS encourages the use of the trend estimates for time series analysis. See the Demography Working Paper 2004/2 - Interpretation and Use of Overseas Arrivals and Departures Estimates (cat. no. 3106.0.55.002).
Trend and seasonally adjusted estimates are subject to revision, particularly at the current end of the series, due to additional original information becoming available. See Explanatory Notes 14 to 17.
CHANGES IN THIS ISSUE
There are no changes in this issue.
REVISIONS
Annual seasonal adjustment reanalysis: The seasonally adjusted and trend series have been updated following the annual review of the seasonal adjustment process. This review provides an opportunity to confirm the extent to which movements are affected by seasonal or irregular influences. As a result, the seasonally adjusted and trend estimates of a number of series have been revised.
Introduction of ARIMA modelling techniques: From this issue the ABS has implemented improved methods of producing seasonally adjusted estimates, focused on the application of Autoregressive Integrated Moving Average (ARIMA) modelling techniques. See paragraph 15 of the Explanatory Notes for more detail.
Original series: While revisions were made to both the seasonally adjusted and trend series, no revisions were made to the previously published original series.
INQUIRIES
For further information about these and related statistics, contact the National Information and Referral Service on 1300 135 070 or Alex Wahlin on Canberra (02) 6252 6762.
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