Not sure what’s the point in comparing your consumption figures to lab-derived numbers which have no basis in reality. The sticker-numbers have never been represented by any manufacturer as achieveable in the real world - they are simply a government-mandated tool to supposedly assist consumers in comparing one vehicle to another.

comparing your real world numbers to the sticker number is about as useful as saying “I can’t get my vehicle up to the numbers at the top of the speedo because the police keep pulling me over - it’s false advertising by [insert vehicle manufacturer name]”