How to store particular data

I used the attached code to read the text files, But Now I want to store the particular data: 1. Information after "Additional information:" this text appears 2. Data below "Additional information:"

More specifically I want :

Data_event: (All data appears between: Additional information, stop at ----line)
1670890
5480
46754
15643
76542

xy_Data:
-14  0.28
-13  0.27
-12  0.26
-11  0.25
-10  0.24
-9  0.23
-8  0.23
-7  0.22
-6  0.22
-5  0.22
-4  0.22
-3  0.22
-2  0.22
-1  0.22
0  0.23
1  0.22
2  0.22
3  0.22
4  0.22
5  0.22
6  0.22
7  0.23
8  0.23
9  0.23
10  0.24
11  0.26
12  0.29

I used the following code to read the text files, and store other information I required, but I am unable to get the above mentioned data:

Many many thanks in advance.