Compare bandwidth eaten by spiders

Google, Yahoo, MSn etc...

[sirkei]

I had my first site 1 year ago but still i do not know whether how the robots visits are determined. For example, on March 2005,

My statistics using awstats are:-
Inktomi Slurp 11587+1547 221.88 MB 31 Mar 2005 - 23:59
Googlebot 5236+58 99.64 MB 31 Mar 2005 - 22:49
MSNBot 3378+246 87.99 MB 31 Mar 2005 - 23:12

In april, i moved server and the bandwidth used by spiders are not accurate. The mainpoint of my question is how to determine how many visits or bandwidth are used for a normal site?

For example, 221.88MB from yahoobot, is this normal after i have my site for 8 months?

99.64MB from Googlebot, is this normal? or too less?

[sirkei]

Anyone? I am really interested to know this.