Devil is in the details, my friend. They arrive at this data from "Finalized applications". For example, if IRCC had finalized 10 applications out of 45,000 FSW applications, this data will be derived from that 10 finalized applications and not from the 45,000 applications. If 4 applications were processed from the 10 finalized applications within 6 months, then naturally 40% were processed in 6 months. To be precise, the number is based on "Finalised applications" not the total number of FSW applications. This data gives us an illusion that 40% of applications were processed within 6 months and you would be wondering "Did IRCC really process 18,000 applications out of 45,000 and that too within 6 months in twenty f**king twenty?".
IRCC should be ashamed for not telling the numbers that matter.