import pandas as pd
import numpy as np

data =  [19,21,24,18,3]
pg = ['PG','ZF','AA','GG','ZF']
location = ['AA_1','AA_1','AA_2','AA_2','AA_2']
weeks = [1,1,2,2,2]

df = pd.DataFrame({'Location' : location,
            'productGroup' : pg,
            'Week' : weeks,
            'productVolumes' : data })
print(df)


  Location  productGroup    Week    productVolumes
0   AA_1    PG  1   19
1   AA_1    ZF  1   21
2   AA_2    AA  2   24
3   AA_2    GG  2   18
4   AA_2    ZF  2   3