Table:
text: Outnumbered
Series 1
Series 1
Episode_No_ Airdate Total_Viewers Share_ BBC_One_Weekly_Ranking
1 28 August 2007 2715000 18.8% N/A
2 29 August 2007 2344000 17.6% N/A
3 30 August 2007 2366000 15.8% N/A
4 3 September 2007 2390000 17.5% N/A
5 4 September 2007 2583000 19.2% N/A
6 5 September 2007 2367000 19.6% N/A

Question: What is the average total number of viewers with a share of 17.6% in shorthanded series 1?

Question: What is the proportion of Outnumbered Series 1 Episode 1?