Sentence:  When Napoleon 's ship had borne him to Elba , French wines had started to cross the Channel , the first shipments in a dozen war-ridden <WSD>years</WSD> , but the supplies had not yet reached rural hostelries where the sweet wines of the Spanish peninsula still ruled . 
Meaning of the word marked with <WSD> tags:  a period of time containing 365 (or 366) days