Hi, you can try this:
T=readtable('Cartel3.xlsx');
n_years=10; %In your file you've got 10 years, you can obvioysly change it if needed
Tnorm=T; %Initialize the table with normalized values
for i=2:(n_years+1) %starts from the second row, because in the first a character is present
Tnorm{:,i}=T{:,i}/mean(T{:,i});
end
% Then, if you want to export the new table
writetable(Tnorm,'Tnorm.xlsx')
