Table:
text: The X Factor (UK series 5)
Ratings
Ratings
Episode Air_date Official_ITV1_rating Weekly_rank Share_
Auditions 1 16 August 10.78 1 48.2%
Auditions 2 23 August 10.10 1 45.4%
Auditions 3 30 August 8.80 2 43.5%
Auditions 4 6 September 9.57 1 42.8%
Auditions 5 13 September 9.96 1 43.2%
Auditions 6 20 September 10.01 1 41.7%
Bootcamp 1 27 September 8.94 6 36.0%
Bootcamp 2 28 September 9.47 1 38.1%
Judges` houses 1 4 October 10.84 1 40.5%
Judges` houses 2 5 October 10.11 3 42.7%
Live show 1 11 October 11.09 1 44.1%
Results 1 11 October 9.05 7 40.8%
Live show 2 18 October 10.21 3 38.5%

Question: What is the official ITV1 rating for Audition 4 of The X Factor (UK Series 5)?

Question: What was the lowest ITV1 official rating for The X Factor (British Series 5) with a share of 45.4%?