[Nicola]

My Birthday (January 6th 1982). Usually the Christmas Number 1 is still at the top of the charts on my Birthday, with a few exceptions (highlighted in blue.)
Green - Number 1 on my 18th
Purple - Number 1 on my 21st

1982 - Human League - Don't You Want Me
1983 - Renee & Renato - Save Your Love
1984 - Flying Pickets - Only You
1985 - Band Aid - Do They Know It's Christmas
1986 - Pet Shop Boys - West End Girls
1987 - Jackie Wilson - Reet Petite
1988 - Pet Shop Boys - Always On My Mind
1989 - Kylie Minogue & Jason Donovan - Especially For You
1990 - Band Aid II - Do They Know It's Christmas
1991 - Iron Maiden - Bring Your Daughter To The Slaughter
1992 - Queen - Bohemian Rhapsody/Days Of Our Lives
1993 - Whitney Houston - I Will Always Love You
1994 - Chaka Demus & Pliers - Twist & Shout
1995 - East 17 - Stay Another Day
1996 - Michael Jackson - Earth Song
1997 - Spice Girls - 2 Become 1
1998 - Various Artists - Perfect Day
1999 - Steps - Heartbeat/Tragedy
2000 - Westlife - Seasons In The Sun/I Have a Dream
2001 - Bob The Builder - Can We Fix It?
2002 - Daniel Bedingfield - Gotta Get Thru This
2003 - Girls Aloud - Sound of the Underground
2004 - Gary Jules/Michael Andrews - Mad World
2005 - Steve Brookstein - Against All Odds
2006 - Shayne Ward - That's My Goal
2007 - Leona Lewis - A Moment Like This
2008 - Leon Jackson - When You Believe