New seasonal adjustment software adopted

Starting from the data for the third quarter of 2015, a new seasonal adjustment software J-Demetra+ has been adopted in the Quarterly National Accounts. The software change does not affect the used seasonal adjustment method. The change does not influence the interpretation or use of the time series either. You can read more about the implementation of the new seasonal adjustment software in Statistics Finland's press release.

In connection with the adoption of the new seasonal adjustment software, the seasonal adjustment models of the time series are also updated. Due to the updating of the models, the seasonally adjusted series, the working day adjusted series, and the trend series may change. As a rule, changes caused by the updating of the models are minor.


Last updated 4.12.2015

Referencing instructions:

Official Statistics of Finland (OSF): Quarterly national accounts [e-publication].
ISSN=1797-9765. Helsinki: Statistics Finland [referred: 25.6.2019].
Access method: http://www.stat.fi/til/ntp/ntp_2015-12-04_uut_001_en.html