The Nordic model, often touted as a paragon of progressive social policies, has long been the envy of many nations. Finland, in particular, has been praised for its generous parental support programs, designed to encourage and facilitate family growth. Yet, despite these well-intentioned efforts, the country has witnessed a startling decline in its birthrate, plummeting by nearly a third since 2010.
The issue with pedantry is you have to make sure you’re right - data here is the collective noun for a group of individual data, so is used correctly.
Plus “plummeted by a 33%” was literally right there