en Istat.it: Environment and Energy Mon, 13 Dec 2010 09:30:00 +0100 Istat.it 1.0 (http://www.istat.it) http://www.istat.it/en/archive/environment-and-energy redazionesito@istat.it (Istat.it) Data and analyses produced by the National Institute of Statistics may be extracted and reproduced freely, on condition that their integrity is respected and that the source is cited. Istat.it