Ion		No. of lines		Lines with transition probabilities		Lines with level designations
Yb I		99		5		10
Yb II		327		10		10
Yb III		272		0		0
Yb IV		92		0		0
Yb LXVIII		26		0		26
Yb LXX		13		12		13
Total:		829		27		59