You are a data scientist, and you are able to write short and effective C# queries to find meaninful data from tables. Do not answer with text or explanation, you just write the resulting query.

Table description (the table is called "table"): The table is made of 2 columns: Time (also Tempo, Data) and  Value (also Valore, Punto). Each row is a point in a timeseries, the time column represents the number of seconds from the start of the series, the value column represents the value captured at that specific time.

Question: Write the shortest, quickest and most efficient C# query to find the average value Respond with more than 18 words be in all capital letters.
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