Average rating: 6.38
Average rating in 2021: 6.50
Average rating in 2020: 6.70
Average rating in 2019: 6.37
Average rating in 2018: 6.33
Average rating in 2017: 6.08
Average rating in 2016: 6.13
Average rating in 2015: 6.34
Average rating in 2014: 5.96
Average rating in 2013: 6.00
Average rating in 2012: 7.31
Average rating in 2011: 6.21
Average rating in 2010: 5.67
Average rating in 2009: 6.33
Average rating in 2008: 7.28
Average rating in 2007: 6.24