https://www.bls.gov/fls/intl_gdp_capita_gdp_hour.pdf

In this document are comprehensive tables from 1960 to 2010!  Very interesting numbers.  The GDP/employed person in Italy is higher than in Germany, per worked hour, much lower!

 An employed person in Italy in 2010  worked 383 hours/ year more than in Germany,  this are 9 weeks more!!!!!!!