Help with pattern

The pattern says in order to keep continuity of patt as set throughout inc 1 st at each end of 5th and following 6th row to 54 st. Does that mean I should increase at the 5th and 6 row or the 5th and 11th row
Also for the larger size for which I am working It says for those sizes only Inc 1 st at each end of every foll 8th row to 68 st. Can someone clarify this for me.
Thanks so much, I am trying to complete my first sweater and the sleeves are giving me problems.
Thanks again for any assistance

My take would be 5th and 11th rows for the first set of increases.

After these increases are complete to the 54 stitches, then increase every 8th row until you get to 68.