The thing you need to look at is how many jobs are there where the pay is going down year on year. This may be in actual terms or just relative to the cost of living.
There are a lot of jobs where the skills are being devalued either by new technology, increased competition in the jobs market or the fact that everything now comes from China.
A friend of mine was made redundant last year. Skilled engineer, degree level qualifictions, top man in his field ( computer operated lathes ). Chances of getting another job zero. Hadn't had a pay increase for five years before being made redundant.
Thousands more like him. Many of us fall into that catagory.