I'm in a SB, graduated in 2014 with NS and joined service with 1st Class Honours.

2014 - $4,2xx
2015 - $4,5xx (confirmed)
2016 - $4,8xx
2017 - $5,4xx (promoted)
2018 - $5,6xx
2019 - $6,2xx (promoted)

How is this progression rate? Normal?