Bids are hidden by the project creator.
Log in as the employer to view bids or to bid on this project. You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications
If you can provide me the proper data files for those years which you have mentioned, I can do your work. I have searched for the data set following the link provided, but unable to locate the particular data set.moreless