How the bookies see the UK General Election 2017

I love numbers and here is one thing I just wished to keep going from my old ways until up until the General Election to see how the betting markets are reacting
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originally posted here

I thought it would be interesting to keep a check on the latest number of seats William Hills uses for each party for their bet of will the party win more than or less than this number. Although not scientific it does at least show the general sentiment of the punters as Hills will lower or raise the number of seats depending on how many bets they are taking, so lots of bets for more than a number and they will raise that number and same the other way around.

Links to each parties seat bet, as the markets can fluctuate so if you wish to see the latest follow the links

Conservatives
Labour
SNP
Lib Dems
Plaid Cymru
Greens
UKIP (Book has been closed)

Party >>> Date VVV	CONSERVATIVES	LABOUR	SNP	LIB DEMS	PLAID CYMRU	GREENS	UKIP
20th April	374.5	170.5	50.5	31.5	3.5	1.5	0.5
22nd April	378.5	164.5	51.5	29.5	4.5	1.5	0.5
23rd April	378.5	164.5	53.5	27.5	4.5	1.5	0.5
24th April	378.5	164.5	50.5	26.5	4.5	1.5	0.5
25th April	387.5	160.5	50.5	26.5	4.5	1.5	0.5
27th April	387.5	159.5	50.5	26.5	3.5	1.5	0.5
29th April	387.5	159.5	49.5	26.5	3.5	1.5	0.5
2nd May	387.5	159.5	49.5	26.5	3.5	1.5	0.5
3rd May	387.5	158.5	49.5	26.5	3.5	1.5	0.5
4th May	387.5	162.5	49.5	26.5	3.5	1.5	0.5
5th May (am)	389.5	161.5	48.5	20.5	3.5	1.5	0.5
5th May (pm)	399.5	153.5	46.5	18.5	3.5	1.5	0.5
9th May	396.5	157.5	45.5	14.5	3.5	1.5	0.5
10th May	396.5	157.5	45.5	15.5	4.5	1.5	0.5
18th May	397.5	161.5	45.5	12.5	4.5	1.5	0.5
21st May	394.5	165.5	45.5	12.5	4.5	1.5	0.5
22nd May	393.5	171.5	45.5	12.5	4.5	1.5	0.5
27th May	375.5	187.5	46.5	13.5	4.5	1.5	Book Closed
31st May 8am	375.5	193.5	47.5	11.5	4.5	1.5
31st May 9pm	361.5	205.5	48.5	11.5	4.5	1.5
1st June	359.5	207.5	47.5	10.5	4.5	1.5
4th June	356.5	210.5	48.5	12.5	4.5	1.5
6th June	352.5	217.5	45.5	10.5	3.5	1.5
8th June 8.48pm	361.5	206.5	45.5	10.5	3.5	1.5
8th June 10.56 pm after exit poll before 1st result	320.5	261.5	36.5	13.5	Book Closed	Book Closed
TBC
TBC
TBC
TBC