age measurement
0.0        4.60
0.0        6.74
0.0        4.17
0.0       10.30
0.0        7.60
0.0        2.69
0.0        3.88
0.0        5.69
0.0        5.82
0.0        5.77
2.5        4.15
2.5       17.97
2.5        1.87
2.5        3.25
2.5        3.00
2.5        1.56
2.5        4.59
2.5        1.76
2.5        1.42
2.5        2.76
5.0        3.50
5.0        2.41
5.0        4.49
5.0        4.23
5.0        2.98
5.0        5.25
5.0        1.93
5.0        3.96
5.0        1.46
5.0        1.97
7.5        6.79
7.5        1.15
7.5        1.84
7.5        1.63
7.5        1.13
7.5        3.89
7.5        5.57
7.5        1.91
7.5        2.27
7.5        2.67
10.0       4.77
10.0       2.19
10.0       2.84
10.0       9.39
10.0       1.94
10.0       3.87
10.0       2.45
10.0       4.49
10.0       4.73
10.0       4.11
15.0       6.58
15.0       2.38
15.0       9.05
15.0       9.99
15.0       2.89
15.0       2.61
15.0       3.05
15.0       2.10
15.0       3.17
15.0       2.86
20.0       1.62
20.0       6.90
20.0       5.12
20.0       1.28
20.0       0.88
20.0       3.38
20.0       1.73
20.0       1.65
20.0       2.01
20.0       2.60