Good stats for a 15 year old rower?

Been rowing for about three years now I’m 6 foot 4 87kg and wondered if my erg times were any good haven’t done a 2km in about 5 months but my last one was at rate 24 and I did a 6:55 my most recent test is similar to a 5km but we do a 20 minute at rate 20 where we go a little bit further than 5km around 5 and a half and I rowed at a 1:49.5 average per 500m. Are these promising results?