I'll repost, just in case.
DD is at what was a semi reasonable comp in a fairly affluent area lucked into HA house round the corner, changed to an Academy this Academic year.
DD is in Y10, chose her options in Feb of last year. She dropped MFL at the end of Y7 for reasons relating to her SN's, so she is doing one less GCSE than the rest of her year group. (The lessons timetabled for MFL are used for her Learning Support).
She is doing : Eng Lang, Eng Lit, Maths, Double Science (do you do separate Chemistry, Physics, Biology exams with the Double? She sits totally separate exams, maybe she's doing triple? She's predicted a C in science?), Religious Studies, IT, Catering and Textiles, all GCSE. She is also doing Health & Social Care BTEC. So to me that works out as 9 GCSE's plus a BTEC. And maybe one more GCSE if her Science is actually Triple. Which it might be - she gets separate grades in her reports for each science come to think about it.
So probably 10 plus a BTEC, and she's doing one less than most of her year group as no MFL.
So most are probably doing 11/12, and I know that top set definitely do 13, AND have the option of a 14th as a twilight class.
[boggles eyes]
I did 12, way back when
My Dbro did 15 (!) 5 years ago, but he did FOUR twilight courses, two in the course of Y10 (yes, in a year), and two in Y11. For fun. My Dbro is a self confessed nerd though. He got 11 A*'s, 3 A's and a B. He is just finishing Uni now, last year of an Environmental Science degree.
It seems they do lots at my DD's school then. Didn't realise 9/10 was so common.