f      counter
49.798  1
49.797  2
49.793  3
49.792  4
49.794  5
50.203  1
50.201  1
50.201  2
50.202  1
50.205  2
50.206  3
50.209  4
50.21   5
50.212  6
50.21   7
50.211  8
50.211  9
50.211  10
50.212  11
50.21   12
50.206  13
50.205  14
50.206  15
50.201  16

Average
49.7948
50.203
50.201
50.2015
50.2079375