wats the number shown in brackets?

windows -  new windows 2020
India
November 12, 2007 1:01pm CST
it looks like no. of discussions we have taken part in But why reduces one day and increased on other day. pls tell me, also tell me the earning table.
1 response
@uath13 (8207)
• United States
12 Nov 07
It gets reduced when discussions you responded to are deleted for one reason or another. As for a table. I haven't seen an actual calculations table for this site yet.