640.01/3 =
8.61773876012754
640.51/3 =
8.61998237875537
641.01/3 =
8.62222483004767
641.51/3 =
8.62446611552165
642.01/3 =
8.62670623669136
642.51/3 =
8.6289451950677
643.01/3 =
8.63118299215844
643.51/3 =
8.63341962946824
644.01/3 =
8.63565510849861
644.51/3 =
8.63788943074799