In 2022, 35.9 per cent of entries were graded A*-A. This fell to 26.5 per cent this year.
The drop had been anticipated given the return to pre-pandemic grading standards.
But none of the most popular A-level courses saw top grades fall all the way back to the 2019 benchmark.
Several subjects, including computing, continue to have far higher proportions of top grade entries.
Here are the key findings from results published by the Joint Council for Qualifications (JCQ) this morning.
1. Which A-level subjects had the most top grades?
Of the 15 most popular A-level subjects, maths again had the highest proportion of A and A* grades (41 per cent this year).
This was followed by chemistry (31.1 per cent), art and design subjects and physics (both 30.8 per cent).
2. Which subjects had the fewest top grades?
Of the most popular A-level subjects this year, media, film and TV studies had the lowest proportion of A and A* grades (12.6 per cent).
This was followed by business studies (15.2 per cent), sociology (18.6 per cent), psychology (18.8 per cent) and computing (21.7 per cent).
3. Which subjects saw the biggest fall in results?
Media, film and TV studies saw the biggest percentage fall in top grades compared to last year, at 46.4 per cent.
Last year, nearly a quarter of entries (23.5 per cent) were A* or A in the subject, compared to 12.6 per cent this year.
This was followed by computing, with a fall of 38.2 per cent, and business studies with a drop of 37.7 per cent.
4. Which A-level subjects saw the smallest fall?
Maths, which saw the least inflation to grades under teacher assessments in 2021, saw the smallest fall in top grades this year at 13.1 per cent.
Last year, nearly half (47.2 per cent) of entries gained an A or above, compared with 41 per cent this year.
5. So which subjects are furthest away from the 2019 benchmark?
This year, exams watchdog Ofqual instructed exam boards to bring grades down again so they returned to pre-pandemic 2019 standards.
But some of the top 15 most popular A-level subjects are still a way off the 2019 benchmark in terms of top grades.
This was most apparent in computing. A and above grades for entries in the subject were 23.3 per cent higher this year than in 2019.
6. And which subjects are the closest to pre-pandemic standards?
But other subjects are far closer to 2019 benchmarks. Economics is closest to pre-Covid in terms of the proportion of entries receiving top grades.
In 2019, 28.7 per cent of entries gained A or above grades, compared with 29 per cent this year.