FOI request (FOIR-114611682)

I'm enquiring about sexual health postal testing kits. I would like to know:(1) the amount spent in pounds sterling on sexual health postal testing kits (which are sent through the post to a person's home and then returned by them for analysis) in the past three financial years: 2018-19; 2017-18; 2016-17 - up to the latest year for which data is held.(2) the number of sexual health postal testing kits sent to persons in the past three years (figures for each year)(3) the number of sexual health postal testing kits returned to the authority in the same years (figures for each year)Please contact me at your earliest convenience for any clarification and also advise me on my request as per the relevant legislation. Please provide the data in Excel spreadsheet format.