[#insert]         [date time]   [ins/s]
     1000 2005-03-09 10:58:10   649.516
     2000 2005-03-09 10:58:14   287.810
     3000 2005-03-09 10:58:19   212.805
     4000 2005-03-09 10:58:26   136.577
     5000 2005-03-09 10:58:34   118.965
     6000 2005-03-09 10:58:45    94.537
     7000 2005-03-09 10:58:57    84.296
     8000 2005-03-09 10:59:10    74.197
     9000 2005-03-09 10:59:26    64.026
    10000 2005-03-09 10:59:44    54.799