Next UK Labour Leader: What the bookies think (2015-08-20 update)

Corbyns chances seem to be gently dropping in the bookies estimations, is this an effect of the #LabourPurge?

Table of what bookies thinking in aggregate on the chances each candidate has at being next UK Labour Party leader:

Position	Candidate	Chance implied by odds	Change (since 2015-08-09)
1	Jeremy Corbyn	76.96%	+36.25%
2	Andy Burnham	24.61%	-17.88%
3	Yvette Cooper	10.01%	-16.29%
4	Liz Kendall	0.93%	-0.62%

Odds given across various bookmakers (bet365, skybet, totesport, boylesports, betfred, sportingbet, betvictor, paddypower, stanjames, 888sport, ladbrokes, coral, williamhill, winner, spreadex, betfair, betway, titanbet, unibet, bwin, 32red, betdaq, matchbook) are meaned and then inverted to give the rough chance bookies as a gestalt reckon each candidate has.