"más que nunca" always fit in this sense

For quality measures use: "más que nunca" ... quality that cannot be measurable, for example there are more young people, "más que nunca" .. For quantity measures use: "mayor que nunca" ...for example the divorce rate is a measurable unit so you can use "mayor que nunca" ... if you place "más que nunca" doesn't sound good here. That's how I understand it...

Mas que nunca or Mayor que nunca "There are more young people today than ever" Hay mas personas jóvenes hoy día que nunca. "This year, the divorce rate is higher than ever" Este año, la tasa de divorcios esta mayor que nunca. (or mas alta que nunca)

There are more young people today than ever. Hay mas población joven en la actualidad que anteriormente. This year, the divorce rate is higher than ever. Este año la tasa de divorcios es mayor que nunca.

"There are more young people today than ever"/ Hay mas personas jóvenes hoy que lo usual "This year, the divorce rate is higher than ever"/ Este año la tasa de divorcios es mayor que nunca