Hi Dear,
It cannot be possible to benchmark the salary structure because Every organisation has their own salary structure. There are lots of deferent organisation running in this universe, but the Minimum wage has been fixed for Unskill, Semi-Skilled, Skilled and highly skilled workers.
apart from Basic, and other components including allowances system etc. and every company has their own incentive scheme for retaining the best employee, Which comes in salary structure.
Now you can understand that salary structure can changed by Location to Location, Exp. to Exp. might be some time give more salary for same exp. for getting the job done.
The better way to understand the structure, analysed past 1 years Data from Resume Banks.and analyes current cost of index of your country and calculate it.