the pattern is for sleeves and I have just done 11th rows of stocking stitch

The pattern says [color=red]increase 1 stitch either end on the 11th and every following 12th row.[/color]

Do they mean after increasing on row 11 to start counting from 1 on row 12 without increasing and then increase when I get to 12

or do they mean increase on 11th row then the next row then start counting from 1 again and increase on the 12th row again.

It’s the words “and every following” that is throwing me :pout:

The rest of the pattern says [color=red]until there are 46 stitches[/color] I currently have 40 stitches after increasing on row 11.

Thanks for any help you can give