Since the photo stats proved interesting I thought I ought to post the stats for the number of open pubs reviewed in each county as well.

East Sussex is seriously leading the way on this one! Personally I anticipated to see Central London top it.

Table shows:-
Percentage of open pubs with a review - number of open pubs with review - total number of open pubs - county
Code:
84.0%	631	751	East Sussex
71.9%	526	732	Surrey
71.2%	1453	2041	London (Central)
71.0%	1696	2388	London (Greater)
65.6%	1150	1753	West Midlands
64.6%	339	525	East Riding of Yorkshire
64.2%	421	656	Berkshire
63.3%	421	665	Bristol (County)
59.5%	886	1490	Kent
59.3%	582	982	Staffordshire
58.5%	31	53	Rutland
57.8%	359	621	Shropshire
57.6%	554	961	Nottinghamshire
57.3%	786	1371	North Yorkshire
56.4%	346	614	Dorset
55.8%	461	826	Hertfordshire
52.9%	1232	2330	Manchester (Greater)
51.1%	466	912	Somerset
49.7%	333	670	Cornwall
49.4%	609	1232	Hampshire
49.2%	578	1175	Derbyshire
45.9%	339	738	Lothian
45.8%	77	168	Isle Of Wight
44.5%	254	571	West Sussex
44.3%	317	715	Leicestershire
43.9%	300	683	Wiltshire
43.6%	438	1004	Cheshire
43.2%	186	431	Bedfordshire
42.5%	229	539	Warwickshire
42.1%	213	506	Buckinghamshire
41.9%	833	1990	West Yorkshire
41.5%	471	1136	Essex
39.7%	230	580	Worcestershire
38.6%	428	1110	South Yorkshire
37.4%	127	340	Northumberland
36.6%	173	473	Clwyd
36.1%	260	720	Oxfordshire
35.5%	508	1429	Lancashire
35.3%	456	1292	Devon
35.3%	317	899	Norfolk
33.6%	339	1009	Lincolnshire
33.1%	277	836	Cumbria
32.7%	123	376	Gwynedd
31.2%	207	663	Cambridgeshire
30.1%	142	472	Northamptonshire
30.1%	77	256	Herefordshire
29.6%	225	761	Suffolk
29.3%	181	618	Gloucestershire
28.5%	473	1660	Strathclyde
28.4%	59	208	Dumfries and Galloway
27.3%	295	1079	Merseyside
27.3%	155	568	Dyfed
23.3%	99	424	Highland
23.3%	60	257	Powys
22.6%	183	810	County Durham
20.7%	59	285	Central
20.6%	185	897	Tyne & Wear
20.5%	93	453	Grampian
20.1%	28	139	Borders
19.4%	6	31	Western Isles
18.6%	67	360	Antrim
17.4%	78	447	Mid Glamorgan
16.8%	63	374	West Glamorgan
15.8%	81	513	Tayside
14.5%	47	325	Fife
12.8%	42	329	South Glamorgan
10.6%	52	492	Gwent
5.5%	12	219	Down
5.0%	1	20	Orkney
4.0%	6	149	Londonderry
3.6%	2	55	Fermanagh
3.1%	4	130	Tyrone
1.2%	1	82	Armagh
0.0%	0	22	Shetland Islands