Decreasing for sleeves

I am working the sleeves for a cardigan with set in sleeves. It’s a Brunswick pattern from mid 70’s. To work the sleeve cap it says to decrease one stitch each end on next 10 rows. Do I decrease on my right side row, then turn and decrease again on the wrong side, etc? Or should I only be decreasing on my right side row 10 times?

It says “each row” rather than “every other row”, so you would do the decreases on every row, one at each end.

Thank you Ingrid!