This is a little statistic made by Eurispes in 2003.
It hasn't been confirmed by ISTAT because ISTAT has a big "basket" of items to describe inflation. It takes count only of the food inflation. It generated strong discussions in 2003.
It has been a psychological effect. 2000L = 1€, in many cases they made 1000L = 1€. It generated a strong speculation operation.
Corporation aren't gaining so much now, seeing their stock market performances in the last years. This is Italian MIB.
The real trouble of all that is happening is that in the last 15 years it has been a strong deindustrialization process finalized to move factories in east countries (China, etc.) Now we are seeing, after several years, the social/occupational wave that take the whole economical system, from public debt, people, companies, etc.
In 1991, Italy was risking default. They decided to reduce the Lira ratio, in this way the production costs of Italian goods has reduced by these financial operations and this generated the growth. Now we cannot change none.
If you are a wise investor nowadays you would make investments in far east.