What years all the Harry Potter books written?

Here are the years the Harry Potter books were written:

* Harry Potter and the Philosopher's Stone: 1997 (Published in 1997)

* Harry Potter and the Chamber of Secrets: 1998 (Published in 1998)

* Harry Potter and the Prisoner of Azkaban: 1999 (Published in 1999)

* Harry Potter and the Goblet of Fire: 2000 (Published in 2000)

* Harry Potter and the Order of the Phoenix: 2003 (Published in 2003)

* Harry Potter and the Half-Blood Prince: 2005 (Published in 2005)

* Harry Potter and the Deathly Hallows: 2007 (Published in 2007)