Could you give me some smaller notes? <a href=" http://www.a3xd.pl/?adcirca-competition.pptx ">cost of adcirca</a> The hole is an area in the atmosphere with low ozone concentrations. It is normally at its biggest this time of year. The US space agency says on average it covered 8.1 million square miles this season. That's 6 per cent smaller than the average since 1990.