The Trend Indicator of Output endeavours to forecast the monthly development of the national economy. It contains index series since January 1996. The data are in the form of an index whose base year is always the previous year. The data have been calculated as original and working day adjusted series for the whole economy and for three main industries. A seasonally adjusted and a trend series are also calculated for the whole economy.
Official Statistics of Finland (OSF):
Trend Indicator of Output [e-publication].
ISSN=1798-5439. Helsinki: Statistics Finland [referred: 28.8.2015].
Access method: http://www.stat.fi/til/ktkk/meta_en.html