Ion		No. of levels
Rb I		240
Rb II		166
Rb III		92
Rb IV		131
Rb V		21
Rb VI		20
Rb VII		21
Rb VIII		25
Rb IX		37
Rb X		41
Rb XI		50
Rb XII		132
Rb XIII		46
Rb XIV		2
Rb XV		2
Rb XVI		2
Rb XVII		2
Rb XVIII		2
Rb XIX		9
Rb XX		4
Rb XXI		7
Rb XXII		10
Rb XXIII		12
Rb XXIV		12
Rb XXV		10
Rb XXVI		32
Rb XXVII		22
Rb XXVIII		13
Rb XXIX		15
Rb XXX		8
Rb XXXI		16
Rb XXXII		2
Rb XXXIII		16
Rb XXXIV		11
Rb XXXV		5
Rb XXXVI		80
Rb XXXVII		50
Total for Rb:		1366