Income class	Year
Income class	2004	2005	2006	2007	2008	2009	2011	2012
Up to 1 minimum wage (MW)	0.7	2.1	1.5	2.5	3.2	3.9	4.6	61
From 1 to 3 MW	4.4	13.1	15.2	12.9	15.7	18.6	21.9	22.6
From 3 to 5 MW	11.5	18.6	21.1	17.1	19.5	20.0	18.0	17.5
From 5 to 10 MW	28.6	27.8	27.7	27.7	24.5	23.7	21.3	21.5
From 10 to 20 MW	27.7	21.9	21.5	22.8	22.3	18.5	20.7	17.8
From 20 - 40 MW	21.5	13.1	9.7	13.2	10.9	11.7	9.6	9.4
Over 40 MW	5.5	3.5	3.4	3.7	4.0	3.5	3.8	5.1
Total	100	100	100	100	100	100	100	100