Ion		No. of lines		Lines with transition probabilities		Lines with level designations
Mg I		1342		1090		1342
Mg II		601		482		601
Mg III		452		149		452
Mg IV		821		625		821
Mg V		518		513		515
Mg VI		890		883		890
Mg VII		379		344		379
Mg VIII		944		941		944
Mg IX		461		444		461
Mg X		223		184		223
Mg XI		228		192		228
Mg XII		44		44		44
Total:		6903		5891		6900