Survey on the interest in e-books in Germany 2009-2013

Information on base:
German-speaking population ages 14 to 69 in private households, at main residence in the Federal Republic of Germany.

Information on random sample:
2009: 9,668 respondents, projected to a population of 54.58 million
2010: 9,036 respondents, projected to a population of 54.21 million
2011: 8,639 respondents, projected to a population of 53.54 million
2012: 8,213 respondents, projected to a population of 53.03 million
2013: 7,410 respondents, projected to a population of 52.60 million

This question was phrased by the source as follows: "On these cards you can see a selection of offers and new technological possibilities, which already exist or will exist in the near future. It doesn't matter if you have the technological means to access these services or not: which of these would you be interested in personally, which of these would you find useful?
Offer/technological development: possibility to read books on electronic readers, which are easy to carry everywhere one goes."
(Original German question: "Hier auf den Karten sind einige Angebote und technische Entwicklungen aufgeschrieben, die es bereits heute gibt oder in naher Zukunft geben wird. Einmal abgesehen davon, ob Sie über die technischen Möglichkeiten verfügen: Was davon interessiert Sie persönlich, was können Sie selbst gut gebrauchen?
Angebot/technische Entwicklung: Man kann jedes beliebige Buch auf ein elektronisches Lesegerät laden, das man gut in die Tasche stecken und überall hin mitnehmen kann.")