Translation of "1980s" in Dutch

Unfortunately, starting in the 1980s,

Helaas is het sinds de jaren 1980

But in the late 1980s,

Maar in de late jaren 1980

Not in the 1970s or 1980s

niet in de jaren 1970 of 1980,

That was until the late 1980s

Tot het eind van jaren '80