I’m currently filling out the common app and I’m not sure what to put for class rank reporting 
My school is very competitive so we never really know our class ranking- I’m 99% sure I’m in the top 10% at least, but there’s no way for me to confirm this. Our counselors have said that they don’t tell colleges exact rankings, but if pressed they will release decile rankings.
I thought about just leaving the class rank reporting section blank, but I don’t want it to seem like I’m trying to hide something. Should I say leave it blank?? I know that in the grand scheme of things class rank usually doesn’t matter, I’m just worried about how it will look if I leave this section blank. Any advice would be appreciated, thank you!!!