Meaning of year-to-year in English:
year-to-year
adjective
Relevant or relating to successive years; especially determined by comparing results or figures from successive years.
Pronunciation
year-to-year
/ˌjɪətʊˈjɪə/ /ˌjəːtʊˈjəː/Origin
Mid 19th century; earliest use found in Isaac Taylor (1787–1865), writer on theology, artist, and inventor. From year + to + year, after from year to year.
Are You Learning English? Here Are Our Top English Tips