Bobby+Smith+was+an+Irish+dude

Bobby Smith is a man. And he in Irish. Bobby has a rare illness that makes him shrink 4cm on Wednesdays, grow 19 cm on Tuesdays, shrink 25cm on Fridays, shrink 12cm on Saturday, and grow 9cm on Sundays. The Irish law states that when a man or woman is 14cm tall or shorter they officially a crazy small leprechaun. How long does Bobby have until he is a leprechaun if he is 1600cm tall?