Nottinghamshire Police have lost £54 million in 5 years - I ask why?

Yesterday at PMQ's Theresa May made the ludicrous claim that police budgets have been protected. 
She made this claim just a day after, the Home Affairs Select committee on was told forces in England and Wales will lose 6,000 officers by 2020 owing to budget cuts - the Tories are totally shameless.

Today, I asked the Leader of the House, if police funding is protected as they claim, why Nottinghamshire Police have lost £54 million over the past 5 years?

Watch my question here: https://www.facebook.com/VernonCoaker/videos/1342112009244116/?t=2