2019 8.1

2018 7.3

2021 7.2

2011 6.7

1996 7.0

2005 7.0

2019 6.6

1997 6.2

2000 6.3

2017 5.2

2013 7.1

1997 8.3

1982 8.1

2016 7.2

1997 8.6

2022 7.3

2010 7.8

2003 8.2

1960 8.5

2015 6.3