Table 1
Adjusted family sizes for three different equivalence scales

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  OECD LIM Square root
One adult 1.0 1.0 1.00
One adult, one child 1.3 1.4 1.4
Two adults 1.5 1.4 1.41
One adult, two children 1.6 1.7 1.73
Two adults, one child 1.8 1.7 1.73
Three adults 2.0 1.8 1.73
One adult, three children 1.9 2.0 2.00
Two adults, two children 2.1 2.0 2.00
Three adults, one child 2.3 2.1 2.00
Four adults 2.5 2.2 2.00
One adult, four children 2.2 2.3 2.24
Two adults, three children 2.4 2.3 2.24
Three adults, two children 2.6 2.4 2.24
Four adults, one child 2.8 2.5 2.24
One adult, five children 2.5 2.6 2.45
Two adults, four children 2.7 2.6 2.45
Three adults, three children 2.9 2.7 2.45
Four adults, two children 3.1 2.8 2.45
Note: The definition of an adult differs for each equivalence scale: 16 and over low income measure (LIM), 15 and over Organisation for Economic Co-operation and Development (OECD). For the LIM scale, the second oldest person is treated as an adult, regardless of age.
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