The 30th percentile figures shown here are taken from the last 12 months of lettings information, collected up to the end of September 2012.
Mae ffigurau’r 30ain canradd a ddangosir yma wedi’u cymryd o’r wybodaeth am eiddo ar osod dros y 12 mis diwethaf, a gasglwyd hyd at ddiwedd mis Medi 2013.