WOS is showing the whole thing. The Daily Mail is using selective statistics as you admit yourself. It's morons like you who read papers like the Daily Mail, Express and Telegraph who take a whataboutery attitude, because you know what you're reading isn't giving you the complete picture. Just selective facts while leaving out the rest in order to create a narritive bias.
But as long as it reads #SNPbad, you don't really care if it isn't accurate when compared to the complete picture.
You don't even consider the fact that their travelling expenses are higher, because they have far greater involvement over debates and voting at westminster than the previous labconlib arrangement.