Age of main breadwinner Variation coefficient Total Total variation coefficient 1.08 up to 25 years old variation coefficient 15.67 between 26 and 35 years old variation coefficient 4.84 between 36 and 45 years old variation coefficient 2.66 between 46 and 55 years old variation coefficient 2.98 between 56 and 60 years old variation coefficient 4.47 between 61 and 65 years old variation coefficient 5.01 66 years old and over variation coefficient 3.43