[insert]         [date time]   [ins/s]
     1000 2005-03-08 16:02:23  1053.265
     2000 2005-03-08 16:02:25   555.494
     3000 2005-03-08 16:02:27   374.252
     4000 2005-03-08 16:02:31   280.796
     5000 2005-03-08 16:02:35   221.845
     6000 2005-03-08 16:02:41   189.839
     7000 2005-03-08 16:02:47   162.636
     8000 2005-03-08 16:02:54   142.633
     9000 2005-03-08 16:03:02   126.241
    10000 2005-03-08 16:03:10   114.398