values = np.array([[14.8, 17.0, 74.3, 40.3, 90.2], [25.2, 75.9, 5.6, 40.0, 
    33.7], [78.9, 39.3, 11.3, 63.6, 56.7], [11.4, 75.7, 78.4, 88.7, 58.6],
    [79.6, 32.3, 35.3, 52.5, 13.3]])
Summing data from array based on other array in Numpy