1. Estimation of same-sex couples in the Netherlands Jan Latten Liesbeth Steenhof Statistics Netherlands

2. Outline - Introduction: background - Register data - Household statistics - Estimation of number of same-sex couples - Demographic characteristics

5. Marriages and partnerships per quarter among same-sex couples

6. Register data - Since 1 October 1994 automated system - Every municipality has its own register - Basic register for (e.g.): -Social security -Water and electricity supply -Old age pension fund -Statistics Netherlands - Up-to-date - Personal list (e.g.): -Personal data -Data about parents, offspring, spouse -Data about address - Unique personal identification number

7. Person 1: Age 15 Sex: male PIN: 11 PIN mother: 21 PIN father: 22 3 persons at an address Person 2: Age 45 Sex: female PIN: 21 PIN spouse: 22 PIN mother: 31 PIN father: 32 PIN child1: 11 PIN child2: 12 Person 3: Age 46 Sex: male PIN: 22 PIN spouse: 21 PIN mother: 33 PIN father: 34 PIN child1: 11 PIN child2: 12 child mother child father spouse

8. Household statistics % Married couple without children 22 Married couple with children 27 Unmarried couple without children 7 Unmarried couple with children 3 Single parent household 6 One person household 34 Other household 1

9. Person 1: Age 15 Sex: male PIN: 11 PIN mother: 21 PIN father: 22 4 persons at an address Person 4: Age 25 Sex: female PIN: 66 PIN mother: 77 PIN father: 78 Person 2: Age 45 Sex: female PIN: 21 PIN spouse: 22 PIN mother: 31 PIN father: 32 PIN child1: 11 PIN child2: 12 Person 3: Age 46 Sex: male PIN: 22 PIN spouse: 21 PIN mother: 33 PIN father: 34 PIN child1: 11 PIN child2: 12 child mother child father spouse ?

10. Address groups for imputation - Couple with/without children and 1 ‘unattached’ person living at an address - Single parent family and 1 ‘unattached’ person living at an address - 2 ‘unattached’ persons living at an address - 3 ‘unattached’ persons living at an address - 4+ ‘unattached’ persons living at an address

11. Assumptions about predictors for 2 households instead of couple - Same sex - Age difference - Average age - Number of never married persons - Number of foreigners - Degree of urbanization - Interactions + 0 + -

12. Estimation of number of same-sex couples

13. Age distribution of persons in households with 2 persons of the same sex, 1 January 2002

14. Age distribution of partners in same-sex couples, 1 January 2002

15. Demographic characteristics

16. Number of same-sex couples, 1 January

17. Same-sex couples with children, 1 January 2002

18. Ratio of same-sex couples to the total number of couples, 1 January 2002