I think "We" would just like to have some idea of just what does the club spend 21m a Year on, just a rough idea.
Without being entirely snarky, I would suggest that these expenses are roughly the same as what every other club spends their OOC money on. Honestly I'd like to see the breakdown as well, but I think in the end it will be rather boring. More likely, it would lead to arguments over even smaller matters. I don't have details on all teams (and have been able to find very little so far), but see this on what PL teams spend as OOCs:
MCFC reported "other external charges" of £42,280,000 in 2012/13
MUFC reported "other operating expenses" of £66,983,000 in 2011/12
Arsenal report "Other operating charges" of £61,559,000 in 2012/2013
Spurs report "Other operating costs" of £27,912,000 in 2012/2013
Everton report "Other operating costs" of £21,800,000 in 2012/2013
Norwich City report "Other operating expenses" of £11,221,000 for 2012/2013
Fulham report "Other external charges" of £15,714,820 for 2011/2012*
Also, Chelsea report that in 2011/2012 their "other operating expenses"
increased by £19,200,000, but I can't find anything in their report that gives a value for this category as a whole.
*Fulham are the only club I've seen that reports in less than £1,000 denominations