Declension of the word "Lebensdauer"

Singular and plural for Lebensdauer, f, female declension     

Singular
Plural
Singular
Nominativ (Wer? Was?)
die Lebensdauer
Genitiv (Wessen?)
der Lebensdauer
Dativ (Wem?)
der Lebensdauer
Akkusativ (Wen? Was?)
die Lebensdauer
Plural
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