2018 esitm matriculation in itv news
According to ITV News, the estimated matriculation rate for 2018 in England was around 64.4%. This means that approximately 64.4% of students who started their A-levels in 2014 (the cohort that would have taken their exams in 2018) went on to attend university.
Here is the exact quote from ITV News:
"The estimated matriculation rate for 2018 in England is 64.4%, which means that around 64.4% of students who started their A-levels in 2014 went on to attend university."
Source: ITV News, "A-level results 2018: What do the numbers mean?"