ALL OF SEPTEMBERS OPINION POLLS

These are the September 2013 voting intention poll averages (with changes from August, where applicable). There were 40 polls last month in which the fieldwork ended on a date last month (comprising 21 YouGov, 9 Populus, 2 Opinium, 3 ComRes, 1 ICM, 1 Ipsos-MORI, 2 TNS-BMRB, 1 Lord Ashcroft).

All polls
Lab 39 (+1), Con 33 (+1), UKIP 12 (=), LD 10 (=)

YouGov
Lab 38 (-1), Con 33 (=), UKIP 12 (=), LD 9 (-1)

Survation
Lab (+1), Con (+3), UKIP (-3), LD (+1)

Populus
Lab 39 (=), Con 34 (+2), LD 12 (=), UKIP 8 (-2)

Opinium
Lab 36 (=), Con 30 (+1), UKIP 17 (-1), LD 7 (-2)

ComRes
Lab 37 (=), Con 31 (+3), UKIP 13 (-6), LD 11 (+2)

Ipsos-MORI
Lab 37 (-3) , Con 34 (+4) , UKIP 11 (=) , LD 10 (=)

ICM
Lab 36 (+1), Con 32 (=), LD 14 (=), UKIP 9 (-1)

TNS-BMRB
Lab 39 , Con 29, UKIP 14, LD 10

Lord Ashcroft
Lab 35, Con 30, UKIP 14, LD 11