Order into my facets

Hello ,

I have customs facet blocks where i need a order :

1$ to 100$
100$ to 500$
500$ to 1000$

At this moment $response has the elements ordered by number of elements so

500$ to 1000$ (7)
100$ to 500$ (4)
1$ to 100$ (1)

In apachesolr search at D.O the order is all the time the same:

* All (455678)
* Modules (4267)
* Themes (512)
* Documentation (6387)
* Forums & Issues (443739)
* Groups (773)

I need all the time the same order where could i fix it please???

I'm thinking to order the $response object . Please if someone knows about it .

Thanks.