That's just the ranking list for the end of season 2010/2011. As it stands, because the summer leagues start in March or so, each FA needs to know, by then at the latest, how many places will be on offer that year.
Look at the LOI as an example. When the league started in March 08, the teams were informed that the winner would be given a CL spot, cup winners in UEFA etc... and that these competitions would be taking place from July/August
2009. The European season 07/08 had not finished by then, so therefore the last complete ranking list that could be used was that of European season 06/07. Hence, rankings from season 06/07 as seen
here were used to calculate the access of each country to the European competitions for 2009/2010. This is where the 2 year gap comes from.