Implementation of HICP Regulation No. 33/2009 on the treatment of seasonal products in the Spanish HICP. Also reallocation of rented holiday apartments from COICOP accomodation services (11.2.0) to actual rentals (04.1.1) in the Spanish HICP.  These changes have a distorting impact on the annual rates of change in 2010.  See Box 3 in the April 2011 ECB Monthly Bulletin for details.
HICP - Insurance connected with the dwelling
Euro area (changing composition) - HICP - Insurance connected with the dwelling, Contribution to growth rate, European Central Bank, Neither seasonally nor working day adjusted