F
J
D
N
O
S
A
J
J
M
A
M
F
J
Share price, pence, from January 2015
800
600
400
200
0
Feb
Jan
Dec
Nov
Oct
Sep
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
Share price, pence, from January 2015
800
600
400
200
0
Guardian graphic
Source: Thomson Reuters