X  mean   SE
 36 38.9 0.66
 59 60.7 0.50
 22 24.5 0.45
 77 71.4 0.83
 46 43.7 1.97
 28 22.3 0.73
 23 22.4 0.39
 49 51.1 3.06
 40 42.0 0.88
 68 77.4 0.47