Ion		No. of levels
Cl I		379
Cl II		275
Cl III		83
Cl IV		41
Cl V		29
Cl VI		67
Cl VII		47
Cl VIII		29
Cl IX		57
Cl X		15
Cl XI		29
Cl XII		37
Cl XIII		34
Cl XIV		22
Cl XV		32
Cl XVI		92
Cl XVII		50
Total for Cl:		1318