The data series per region are calculated as the average of the annual mean for river monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). There were no stations with complete series after inter/extrapolation in the South and Southeast regions. The number of lake monitoring stations included per geographical region is given in parentheses
Austria,Bosnia and Herzegovina,Denmark,Estonia,Finland,Germany,Ireland,Latvia,Lithuania,Netherlands,Slovenia,Sweden,Switzerland,United Kingdom
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