s://.straitstimes.com/singapore/politics/proportion-of-allied-healthcare-professionals-who-left-public-sector-rose-from-2018-to-2022

"Overall, the attrition of AHPs in the public healthcare sector increased slightly from 8.9% in 2018 to 11.6% in 2022. "

Over 5 years isn't it more than 50%, or is my math wonky?