I would be better at just identifying 1 song from each year, that I know I enjoyed during-that-year.
To definitively pick 1 as my #1 favorite, from-that-time would be too hard, partially just comparing songs I love, and partially being sure I actually knew about and enjoyed said song(s) at that time, especially anything before say 1993.
so here's a go at part of it. A lot of it comes down to favorite album during that year and best/favorite song on that album which is kind of boring and predictable.
1993 Tears for Fears - Break It Down Again
1994 Pink Floyd - Lost for Words
1995 Dream Theater - A Change of Seasons
1996 King's X - Train
1997 Fates Warning - A Pleasant Shade of Gray
1998 Marillion - These Chains
1999 Marillion - Interior Lulu
2000 Fates Warning - Still Remains
2001 Transatlantic - Stranger in Your Soul
2002 Pain of Salvation - Beyond the Pale
2003 John Arch - Cheyenne
2004 Marillion - The Invisible Man
2005 The Mars Volta - Cassandra Gemini
2006 Pure Reason Revolution - The Twyncyn/Trembling Willows
2007 Kaddisfly - Via Rail (Janvier)
2008 Ours - The Worst Things Beautiful
so here it is from 1982-on, which any music before that I don't recall or even think I listened to and knew, new music when I was that young (born in 1976, so the ages of 0-6)
I took a liberty with 1990-1992 per I know I knew those songs then, and couldn't find any obvious other songs I love, that I loved then from memory, more, so they just kind of went in by default. I will say, 1989 was a fantastic year for Pop music for my taste. Many other tunes could have been picked.
1982: Survivor - Eye of the Tiger
1983: Huey Lewis and the News - If This Is It
1984: Lionel Richie - Hello
1985: Huey Lewis and the News - The Power of Love
1986: Whitney Houston - Greatest Love of All
1987: Guns N Roses - Sweet Child o' Mine
1988: Roxette - Listen to Your Heart
1989: Faith No More - Epic
1990: Queensryche - Silent Lucitity
1991: Rush - Ghost of a Chance
1992: Dream Theater - Pull Me Under
1993: Tears for Fears - Break It Down Again
1994: Pink Floyd - Lost for Words
1995: Dream Theater - A Change of Seasons
1996: King's X - Train
1997: Fates Warning - A Pleasant Shade of Gray
1998: Marillion - These Chains
1999: Marillion - Interior Lulu
2000: Fates Warning - Still Remains
2001: Transatlantic - Stranger in Your Soul
2002: Pain of Salvation - Beyond the Pale
2003: John Arch - Cheyenne
2004: Marillion - The Invisible Man
2005: The Mars Volta - Cassandra Gemini
2006: Pure Reason Revolution - The Twyncyn/Trembling Willows
2007: Kaddisfly - Via Rail (Janvier)
2008: Ours - The Worst Things Beautiful
2009: Kevin Gilbert - A Tired Old Man
2010: Foals - Spanish Sahara
2011: The Dear Hunter - Mandala
2012: Ramona Falls - Spore
2013: The Reign of Kindo - I Hate Music
2014: Fjokra - Infinite Loops
2015: The Dear Hunter - Waves
2016: Fates Warning - The Light and Shade of Things
2017: Mutemath - Hit Parade
2018: Ours - Fly
2019: Vonavi - Sunburst
2020: Dirt Poor Robins - Skywriter
2021: Kevin Gilbert - Tired Old Man Suite
2022: Toehider - I Have Little To No Memories of These Memories