From: A correction procedure for the working hours variable in the IAB employee history
\({wd}_{y}^{act}\)
\({wd}_{y}\)
\({r}_{y}\)
2010
213.0
253.0
1,610
2011
211.3
251.7
1,570
2012
209.6
249.6
1,600
2013
208.2
249.0
1,590
2014
208.6
249.3
1,580