yesterday (observation)	currently (observation)	today (forecast)	tomorrow (forecast)
Belgium	fairly good - 4	good - 3	fairly good - 4	fairly good - 4
Flanders	moderate - 5	good - 3	moderate - 5	moderate - 5
Brussels	moderate - 5	fairly good - 4	moderate - 5	moderate - 5
Wallonia	good - 3	very good - 2	fairly good - 4	fairly good - 4