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2.3.3 Country Middle Class<br />
Definition and development of a country’s middle class (“Mittelschicht”) is of great<br />
interest, however, it is also controversial and not always international comparable<br />
because different calculation methods are used. According to the German Institute for<br />
Economic Research (DIW), a single person household statistically belongs to the "middle<br />
class" population group if it has an equivalent income 70-150 % of median household<br />
real income. Households earning 90-110 % of the median are referred to as "average<br />
earner".<br />
According to press releases from German Institute for Economic Research (DIW) in June<br />
2010, the income polarization in Germany is increasing, meaning that while the rich are<br />
getting richer, the poor have become poorer. In 2009 did 60 % of people in Germany<br />
belong to the middle class, having a net income of € 860-1844. In 2000 did 66 % belong<br />
to the middle class. The share of population belonging to the higher-income groups rose<br />
from about 16 to 18 % between 2000 and 2009. The middleclass has gained slightly on<br />
behalf of the high income class in 2009, probably as an effect of the financial crisis<br />
(German Institute for Economic Research, 2010).<br />
Figure 2. German income groups, development from 1993-2009 (from left; low,<br />
medium, high)<br />
Source; German Institute for Economic Research (2010)<br />
2.3.4 Housing statistics<br />
There are about 40 million dwelling units and 37 million households in Germany. The<br />
total vacancy rate (share of empty dwellings) is 8.1 % on average. Germany's population<br />
is living almost exclusively in residential buildings, i.e. buildings in which more than 50 %<br />
of the total floor space is used for residential purposes (Destatis, 2010).<br />
Table 3. German dwellings, 2006<br />
INBDP 2010 <strong>Leisure</strong> <strong>boats</strong> Germany 10