Exposure to electro-magnetic radiation - Inter-ministerial working group 09.01.2002 - Updated in 21.02.2003
Statistics of Fixed Telephone Service - 1st, 2nd and 3rd quarter of 2001 09.01.2002 - Updated in 22.01.2008
Statistics of Data Transmission Services / Internet Access Service - 3rd quarter 2001 04.01.2002 - Updated in 22.01.2008