I have a large amount of data and I am trying to calculate median values for each day of the year across 25 years of data.
The median values will be useful so that we can compare current figures to the long-term median on each date.
This is an example of the data I'm using. The values I'm concerned about analyzing are in columns B and C. The data goes back to mid 1999 and for the most part is continuous data, except for labels for the columns which are interspersed every 52 rows:
