louis@bauer ~ $ vnstat -d

        eth0

            day         rx      |     tx      |  total
        ------------------------+-------------+--------------
           19.09.    18,383 MB  |   5,667 MB  |  24,051 MB
           20.09.    22,379 MB  |   1,295 MB  |  23,675 MB
           21.09.    85,226 MB  |  14,444 MB  |  99,671 MB
           22.09.    49,315 MB  |   7,387 MB  |  56,702 MB
           23.09.   101,930 MB  |  17,258 MB  | 119,188 MB
           24.09.    27,166 MB  |  21,098 MB  |  48,265 MB
           25.09.    32,820 MB  |   7,234 MB  |  40,054 MB
           26.09.     3,628 MB  |  14,099 MB  |  17,727 MB
           27.09.    17,840 MB  |   8,510 MB  |  26,351 MB
           28.09.    14,579 MB  |   7,083 MB  |  21,663 MB
           29.09.    46,803 MB  |   7,611 MB  |  54,415 MB
           30.09.    15,336 MB  |  433.73 MB  |  15,769 MB
           01.10.    21,896 MB  |   2,064 MB  |  23,961 MB
        ------------------------+-------------+--------------
         estimated   27,465 MB  |   2,588 MB  |  30,053 MB