Correlation between number of victories in a season and average home attendance

All data sourced from official web sites and L'Equipe.
Fixtures include European Champions Cup, European Challenge Cup, Top 14, English Premiership and Celtic Rugby games from the 2005-6 season onwards. Data excludes knock-out fixtures and drawn games. Games with zero attendance are excluded.
sample size: 12,925 games
mean attendance: 10,283
std dev: 7,828
variance: 61,277,087
maximum attendance (one game): 84,068
minimum attendance (one game): 98