Walthamstow - Berkhamsted

{"lg_-1":[0,0,0,0],"lg_-1_6":[0,0,0,0]}

{"lg_-1":[0,1,1,2],"lg_-1_6":[0,1,1,2],"lg_46":[null,1,1,2],"lg_46_6":[null,1,1,2]}

{"lg_-1":[3,0,3,6],"lg_-1_6":[3,0,3,6],"lg_490":[3,null,3,6],"lg_490_6":[3,null,3,6]}

{"lg_-1":[0,1,1,2],"lg_-1_6":[0,1,1,2],"lg_46":[null,1,1,2],"lg_46_6":[null,1,1,2]}

{"lg_-1":[1,0,3,4],"lg_-1_6":[1,0,3,4],"lg_490":[1,null,3,4],"lg_490_6":[1,null,3,4]}