Score above 499/515

The most typical route to being draw is degree in Canada, max out English score and gain working experience in Canada with PGWP

• a score with 499, everything with only 2 years of experience -515 with 3 years of experience, this is not very common too since pgwp provide only 3 years, when claiming that 3rd year, you’re probably left with 1-2 months of PGWP -scores in the 500+ —french? Not an easy feat —maybe some foreign experience ( doesn’t give much ) —perhaps blood relative in Canada?

Question is, how the hell there are so many 520s in express entry? Is it really all coming from LMIA?