I think 4% increment per year is considered VERY BAD. how can be considered good???
especially in your initial years. If you settle for 4%.... it takes VERY long to climb. In your later years, it is more acceptable but still low I think.
You might want to take reference from the National Wage Council Recommendation.
I am taking reference from there. There are companies who took reference from it as a general guildline for their employee's annual increment.
You might be the lucky one who enjoy higher increment rate, but do bear in mind, not everyone is as lucky as you.
Last but not least, there are also companies which practice low increment but fatter bonuses.