You've got that the wrong way around mate. I've just checked.
Take home for 2016/17 will be £19,489 from a salary of £24,000
Take home for 2015/16 would have been £19,407 from The same salary.
For 2013/14, the take home on that amount was £19,137
For 2012/13 the figure was only £18,851
For 2011/11 less again at £18,681
And the last year Labour were in power for a year at 2008/09 young have only taken home £18,363
So I'm not sure where you went wrong.
But lower wage earners are paying a lot less than they were, not more as you seem to think.
This isn't going to please the lefties though though it will please people that earn £24,000 as they are £1,126 better off now then they were under Brown et al in 2009 in terms of take home pay.
---------check for yourself---------
http://tools.hmrc.gov.uk/hmrctaxcalculator/screen/Personal+Ta
x+Calculator/en-GB/summary?user=guest - 2016/17 calculator
http://www.itcontracting.com/calculators/dividend-tax-calculator-2015-16/ - 2015/16 calculator
Or try this one if you want to easily check every tax year for the last decade (I found this link last annoyingly but it agrees with the other two above) -
https://listentotaxman.com/24000?yr=2016
-----------------
Just for fun I also looked at how much tax you paid in 2008/09 under Labour and how much tax you pay in 2016/17 under the Tories on £1,000,000 per year:
Tax paid in 2008/09 is £404,034
Tax paid in 2016/17 is £459,433
Kinda shits all over your argument really doesn't it. Lower earnings are far better off now and higher earners are paying more tax than they were. Bluemoon should traditionally love that idea. Though personally I'd brick and torch any cunts wanting to take nearly half my hard earned off me.