Changing the reference year
The reference year of a table can be changed clicking on the symbols and .
In fact, if a table is available also for previous or following years, the symbols and will be displayed: clicking on them it is possible to shift from one year to the other. Otherwise these symbols will not be displayed.
Clicking on will shift to the first available year preceding the one displayed.
Clicking on will shift to the first available year following the one displayed.
If different tables are selected at the same time, the symbols will only be displayed if at least one year exists, preceding or following the currently selected one, for which all the selected tables are available.