In what years were these disco songs released?

[discosavvy]

Do you know in what years the following disco songs were originally released? I couldn't find this info on the Web and it seems like the ASCAP ACE and BMI Repertoire databases don't indicate years.

"Shake it Down" by El Coco
"Dancin' in the Disco" by Ronnie Jones
"Superman: Theme From 'Superman'" by Star Galaxy Orchestra
"25 Hours" by Lanier
"Disco Bells" by Walter Murphy
"Here I Go Again" by Thelma Houston
"Sweet Jazz Music" by Panache
"New York Moving" by Ahazz
"Black Joy" by Jimmy Helms
"Forget That Girl" by Maryann Farra and Satin Soul
"Stoned Out of My Mind" by Maryann Farra and Satin Soul
"Sunshine Day" by Ronnie Jones
"Love is a Serious Business" by Alfie Davison
"Surround Me" by Tyrone Ashley
"Don't Stop Dancing" by Tyrone Ashley
"Just Another Rumour" by Tyrone Ashley (not the 1986/1987 version)
"Girls" by Moments and Whatnuts
"Dancing" by Jumbo (1980? 1981?)
"Trinidad" by Jumbo (1980?)
"Rio" by Jumbo (1980?)
"Sugar and Spice" by Don Downing
"Love Doctor" by Don Downing
"Half Past Love" by Don Downing

Also, I've been unable to find info on a new disco song, probably from this year or last year, which is sung by a black female singing group in which some of the lyrics are "...lose your heart at any cost. I've been around enough to know... so take a chance on love... Love ain't... when you want it to. But it's right on time." I have been unable to track down the song's name or the names of the artists. Can anyone help?

[JOL]

hey Disco Savvy, "sugar and spice" & "love doctor" were released in 1979 and the album entitled Love Doctor.

Yetta

[BrunoRepublic]

"Shake it Down" by El Coco

1982. From their final and self-titled album.