hello
I want to calclculate the standard deviation for each number index for the same period (2006 to 2014). for exemple what is the standard deviation for the index number 10009 for this period. I have the same period for all the index number and the index numbers are different.
I've attached my file it's just an example of my database where I have almost 600 index number and that's why I want a code to run for that.
Thank you
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