Ion		No. of lines		Lines with transition probabilities		Lines with level designations
Ni I		576		522		522
Ni II		249		208		208
Ni III		128		50		50
Ni IV		216		169		169
Ni V		1582		1566		1582
Ni VII		24		24		24
Ni IX		38		20		38
Ni X		41		0		41
Ni XI		27		7		27
Ni XII		26		9		26
Ni XIII		34		20		34
Ni XIV		58		50		58
Ni XV		54		30		54
Ni XVI		125		92		125
Ni XVII		117		66		117
Ni XVIII		261		256		261
Ni XIX		88		22		88
Ni XX		73		15		73
Ni XXI		60		46		60
Ni XXII		59		59		59
Ni XXIII		71		71		71
Ni XXIV		48		47		48
Ni XXV		60		58		60
Ni XXVI		63		18		63
Ni XXVII		108		69		108
Ni XXVIII		95		94		95
Total:		4281		3588		4061