& v# r( p" K. dIn Tier 1 markets, some 50% of all traffic is available at 1 cent per click. $ @- \7 c$ l& Q. h& L* R0 t0 kIn Tier 2 markets, between 20%-49 % of traffic is available at 1 cent per click. ! U: u* ?9 ]& i5 U% F3 }' @- p4 R/ V; T3 x7 k' [0 \+ e( K