chepaz:~
@blackbox .:]vnstat
Database updated: Thu Mar  4 13:00:02 2010

   eth0 since 12/02/09

          rx:  198.54 GiB      tx:  137.95 GiB      total:  336.49 GiB

   monthly
                     rx      |     tx      |    total    |   avg. rate
     ------------------------+-------------+-------------+---------------
       Feb '10     83.69 GiB |    6.42 GiB |   90.11 GiB |  312.44 kbit/s
       Mar '10      3.46 GiB |    1.39 GiB |    4.85 GiB |  133.09 kbit/s
     ------------------------+-------------+-------------+---------------
     estimated     30.29 GiB |   12.19 GiB |   42.48 GiB |

   daily
                     rx      |     tx      |    total    |   avg. rate
     ------------------------+-------------+-------------+---------------
     yesterday    878.22 MiB |  764.90 MiB |    1.60 GiB |  155.79 kbit/s
         today     11.86 MiB |  215.40 MiB |  227.26 MiB |   39.78 kbit/s
     ------------------------+-------------+-------------+---------------
     estimated        20 MiB |     396 MiB |     416 MiB |