| Fig6-8 | ||
| År | P90/P10 (høyre aks | Gini |
| 1997 | 1,94 | 16,50 |
| 1998 | 1,95 | 16,30 |
| 1999 | 1,97 | 16,50 |
| 2000 | 2,00 | 16,90 |
| 2001 | 2,04 | 17,60 |
| 2002 | 2,04 | 17,90 |
| 2003 | 2,07 | 18,00 |
| 2004 | 2,05 | 18,00 |
| 2005 | 2,07 | 18,20 |
| 2006 | 2,09 | 18,60 |
| 2007 | 2,16 | 19,10 |
| 2008 | 2,18 | 19,30 |
| 2009 | 2,20 | 19,40 |
| 2010 | 2,21 | 19,50 |
| 2011 | 2,24 | 19,80 |
| 2012 | 2,26 | 19,80 |
| 2013 | 2,29 | 20,10 |
| 2014 | 2,31 | 20,10 |
| 2015 | 2,33 | 20,70 |
| 2016 | 2,30 | 20,50 |
| 2017 | 2,30 | 20,40 |
| 2018 | 2,31 | 20,60 |
| 2019 | 2,33 | 20,60 |
| 2020 | 2,33 | 20,60 |
| 2021 | 2,34 | 20,90 |
| 2022 | 2,36 | 21,10 |
| 2023 | 2,34 | 20,80 |