What is the usual increment (merit + promotion) if one promotes from geo 3 to geo 4? 10% or more?

Also, what is the norm for a female to promote from geo 3 to geo 4?

Is this progression normal or slow?

Mid 2012 - enter service (geo 1.1)
2014 - geo 1A1
2016 - geo 3
2017 - geo 4