The day after the general election the House of Commons library released a flood of papers which had been held up because of purdah rules until after the result was known.

One of the most revealing papers was one on Banking Executives’ Renumeration in the UK. It drew on two sources – Britain’s submission ( required by EU rules ) to the European Banking Authority and British sources such as company reports and details from the banks themselves about long term incentives for senior executives.

The facts revealed in the annexes to this report confirm what a lot of people have suspected but have not always been able to prove. There is-a widening gulf between the top and the bottom that has been going on during the fiercest period of austerity which has seen real wages for million falling. If John McDonnell, the shadow chancellor, and Jeremy Corbyn, the Labour leader, had access to this information during the election it could have been dynamite.

Two facts are extraordinary. This boom in higher executive pay came under the coalition between 2012 and 2015 when David Cameron and George Osborne were actively pursing wage freezes and minimal wage rises in the public sector.

Second it is the scale of it – it is not a handful of new bankers becoming Euro millionaires, it is thousands of them.

And for the very, very top executives at five of our biggest retail banks it is untold riches if they meet performance targets.

The wider picture only came out because of a European Commission directive to collect figures from all 28 EU members on how many bankers are earning over 1 million euro (£884,300 at current rates) a year. At the time the Euro would have been worth less – but even so it is a large sum.

Britain will no longer have to supply this when we leave the EU.

The figures show startling increases in senior staff employed by the banking industry falling into this bracket between 2012 and 2015 across nearly all sectors. Altogether the number of higher earners has risen nearly 300 per cent over this period, from 1272 to 3551.

Among the bigger rises are those in investment banking where the numbers earning this figure and more has risen from 947 to 2146. In asset management the numbers rose from 94 to 415 while those in high street banks rose from 52 to 105.

The average salary among the 2146 top earners in investment banking was 2,021,000 euro or over £1.78 million a year. Among the 415 people in asset management it was even higher at 2,201,000 euro or £1.946 million a year. In retail banking the 105 people averaged a little less at 1,789.000 euro or £1.582 million each a year.

Equally damning is a survey taken from five banks in Britain – HSBC, Barclays, Lloyds, Santander and the state owned RBS.

It looked at the money the five to eight top executives could make. At Lloyds 8 people share £24.9 a million a year between them. The figure for Barclays was £27.1m and at HSBC the top five people shared a whopping £33.4m.

Figures for the state owned RBS are lower at £11.35m while at Santander it was £10.6m.

As already known the chairmen and chief executives also get good pay packets worth millions.

What this says is that the coalition of David Cameron and Nick Clegg were happy to preside over this boom and impose severe austerity, and job cuts to pay for the mess the very same bankers created by triggering the crash in 2008.

As the song goes : “It’s the poor what gets the blame, It’s the rich what gets the pleasure, Isn’t it a blooming shame? “

For not much longer I suspect given the current climate.

I have written about this in Tribune magazine. The House of Commons library report is here for those who wish to read it