Peak chart positions from 1998 are from the ARIA Charts, overall position on the End of Year Chart is calculated by ARIA based on the number of weeks and position that the records reach within the Top 50 albums for each week during 1998.[2]
^The Best of 1980–1990 debuted at #1 in November, 1998 and reached #1 again in January, 1999[7]
^Come On Over debuted on the charts in November, 1997 reaching #1 in February–March, 1999, in May, 1999 and again in August–September, 1999. It remained in the charts until September, 2000.[8]
^Let's Talk About Love debuted at #1 in November, 1997 and reached #1 again in January, 1998. It remained in the charts until November, 1998.[12]
^Americana debuted on the charts in November, 1998 reaching #1 in January–February, 1999. It remained in the charts until October, 1999.[17]
^Grease entered the charts in May, 1991 reaching #1 in July, 1991. It remained in the charts until December, 1991. It re-entered the charts in May, 1998 and peaked at #1 in August, 1998 where it remained in the charts until November, 1998[18]