in C# does Static constructor run for each initialization of object, or only once?

Question

in my Class I have a static dictionary of strings object which contains a big number of Items (it reads from a file and initial them) I wrote a static constructor to do so and i

Answer 1

It runs one time only during the lifetime of the application.

From MSDN - Static Constructors:

A static constructor is used to initialize any static data, or to perform a particular action that needs to be performed once only. It is called automatically before the first instance is created or any static members are referenced.