My baby girl's birth weight was 3.3kg and now she is 1yr 9 month old and her weight is 9.7 kg ..is this weight is okay?? or should I worried

A. Was the right way approximately at the age of one year with the birth rate I am telling you so if you look at it in total your child is quite behind it should be 12 by the age of 2 so right now you really need to work up on the appetite to increase the weight