A couple of days ago I found another, much better one...
...and I decided to make a list of songs that had been No.1s on every 10th of September since 1981.
I also found the archives of the most famous radio chart in Poland - the "Public Radio 3 Chart"...
...and compiled it together. Here are the results:
10th of September, 1981 - On my birthdate:
UK: Tainted Love
US: Endless Love
1982 - On my 1st birthday:
UK & US: Eye of the Tiger
Poland: W domach z betonu nie ma wolnej miłości
1983 - On my 2nd birthday:
UK: Red Red Wine
US: Every Breath You Take
Poland: Wrapped Around Your Fingers
1984 - On my 3rd birthday: