Statistics for the top 100 songs list

Upon further examination of my ‘greatest songs’ list, I have found some mildly interesting trends. The 80’s by far dominated the list with over fifty selections! We all knew that would be the case, the 80’s rule. The 70’s were second with fifteen selections, followed by the 60’s and 50’s in that order. I guess music keeps getting better over time UNTIL you get to the 90’s with only seven selections followed by the 00’s with a meager four picks.
Inside of those decades the greatest single year for music was 1981. 81' hauled in a stunning nine selections. 1986 was next with eight, It's also the year in which (season 85) the Bears won the Super Bowl, so I guess the stars were aligned for a perfect universe. After that 83' and 82' tie with six picks, and the last noteable year is 1977 with five. everything else is pretty evenly distributed, with two or three here and there. Why was there so much good music in the80's especially the middle to late 83-86? The economey was booming, and things were good all around. Perhaps we were in a better mood, and more receptive to up beat tunes. Maybe everyone just had more money to burn and we bought more albums. There isn't necessarily an answer, but it's interesting to think about.
The most successful label was Columbia with ten songs, followed by Epic with nine. A&M follows with six, and MCA and Geffen tied with five a piece.