block position brand   y
    1      1       2   150.0
    1      2       1   188.2
    1      3       2   177.8
    1      4       3   166.7
    1      5       3   187.5
    1      6       1   182.4
    2      1       1   183.3
    2      2       2   183.3
    2      3       2   183.3
    2      4       3   176.5
    2      5       1   160.0
    2      6       3   187.5
    3      1       1   178.9
    3      2       3   182.4
    3      3       2   193.8
    3      4       3   176.5
    3      5       2   188.9
    3      6       1   188.9
    4      1       2   177.8
    4      2       1   145.5
    4      3       3   155.0
    4      4       1   173.7
    4      5       3   200.0
    4      6       2   187.5
    5      1       1   205.6
    5      2       3   188.2
    5      3       3   142.9
    5      4       2   161.9
    5      5       2   177.8
    5      6       1   159.1