With a 7.6% drop in overall artist album sales the # 109 album still sold 2,067 in UK this week. So i'd say UK sales in the last 3 weeks for '18 Singles' have been :
wk 32 : 113. ~2.3k
wk 33 : 121. ~2k
wk 34 : 146. ~1.65k
Total = ~707,515 (~608,365 in '06 + ~99,150 so far in '07)