impossible to generalise trends to the whole of Europe.
The country groupings adopted here are the same as those in Chapter 22 Nordic, Eastern, Southern and Western European regions and are based on physical and geographical areas which generally present similar behaviours (see Box 22A, for a precise description of the countries included in these regions). Since data are systematically, or often, lacking for some countries (Albania, Baltic States, Belarus, Cyprus, Malta, Moldova, Russian Federation, Ukraine), when the whole of Europe is mentioned, the figures given will always be underestimates. The Nordic region includes Finland, Norway and Sweden only, since there is hardly any forest in Iceland.