I qualified to teach secondary science in 2014 from a university with a well-regarded ITT department. Did a six month subject knowledge enhancement course followed by PGCE. I gave up teaching after 4 years because I found it incompatible with family life, but if I had no kids would almost certainly still be going.
From the 12 of us in my SKE course, 8 completed ITT, and 2 are still teaching.
From my cohort of around 40 on the PGCE I know of 6 who are still in teaching.
Of the 5 NQTs in the "good" school where I taught, one is still teaching and one is a supply teacher.
I know there is a problem with retention, but this seems much worse than I would expect. Would you expect to see more than 75% of recently trained teachers to drop out within 5 years or is this just an unlucky coincidence from my experience?