list index out of range, reading data and saving a variable

Question

Hello! I need to read a data that is in a list at position 13 and is repeated every 15 values. Using the following code I receive error message:

for i in range(0,len(dado),15):
         lat = texto.pop(13+i)

The error message is: Indexerror: list index out of range. The array has 15 thousand values, I do not understand why this error :/