Alexa rank !! why this?

[pak]

this is my site picture ... forum is abour 6-7 month old



This is another forum stats ( not mine )
site is about 2 and half year old



now i want to know in 2nd forum alexa is also showing daily results of ranks like yesterday , 7 day but in 1st forum stat ( my forum ) it is only showing 1 month and 3 months stats ,

is it because my site is not under 100 thousands rank or is this because my site is not too old enough for this or is this any other reason

well im new webmaster so dunno much abt these

pak Reviewed by pak on 2nd Apr 2010. Alexa rank !! why this? this is my site picture ... forum is abour 6-7 month old http://www.besthostingforums.com/images/cdn/besthostingforums.com/2010/04/50632851-1.jpg This is another forum stats ( not mine ) site is about 2 and half year old http://www.besthostingforums.com/images/cdn/besthostingforums.com/2010/04/67974785-1.jpg now i want to know in 2nd forum alexa is also showing daily results of ranks like yesterday , 7 day but in 1st forum stat ( my forum ) it is only showing 1 month and 3 months Rating: 5