Total rainfall ranges from 500 mm to 800 mm per annum, with high geographical, seasonal and annual variation.
12.
According to the official statistics the annual fossil fuel and coal emissions in Finland have large annual variation.
13.
This high variability in rainfall is also reflected in a high inter-annual variation of the length of the wet season.
14.
The annual variation of temperature is small, with maximum temperatures varying between 17 and 28 �C during much of the year.
15.
There is a significant inter-annual variation in the rainfall and, as a consequence, in the quantity of water flowing in the river.
16.
The inter-annual variation of monthly rainfall varies even more markedly, the standard deviation of monthly rainfall is 72 % of the mean.
17.
The natural balance for the same period was an increase of 417 inhabitants and a total annual variation in population of 0.4 %.
18.
Since the translational motion of the Earth around the Sun is nonrelativistic, annual variations are typically suppressed by a factor 10 " 4.
19.
The loss of glaciers not only directly causes landslides, flash floods and glacial lake overflow, but also increases annual variation in water flows in rivers.
20.
The district heating used 42 % of hard coal in average 1990 2006, but its annual variation was small compared to the industry separate electricity generation.
