Variable CM2Y : Year of first birth

Overview
Type: Discrete
Format: numeric
Width: 4
Decimal(s): 0
Range: 1973-9999
Valid case(s): 3577
Invalid: 1420
Minimum: 1977
Maximum: 9998

File: wm

Universe
Women who have ever given birth (CM1=1)
Source of information
Respondent

Categories

Value Category Cases
1977 1 0.0%
1979 2 0.1%
1980 2 0.1%
1981 5 0.1%
1982 8 0.2%
1983 21 0.6%
1984 40 1.1%
1985 32 0.9%
1986 54 1.5%
1987 59 1.6%
1988 55 1.5%
1989 76 2.1%
1990 51 1.4%
1991 65 1.8%
1992 71 2.0%
1993 60 1.7%
1994 74 2.1%
1995 87 2.4%
1996 74 2.1%
1997 77 2.2%
1998 81 2.3%
1999 65 1.8%
2000 89 2.5%
2001 93 2.6%
2002 106 3.0%
2003 96 2.7%
2004 152 4.2%
2005 155 4.3%
2006 168 4.7%
2007 201 5.6%
2008 213 6.0%
2009 296 8.3%
2010 256 7.2%
2011 269 7.5%
2012 206 5.8%
2013 205 5.7%
2014 9 0.3%
9997 Inconsistent 0 0.0%
9998 DK 3 0.1%
9999 Missing 0 0.0%
Sysmiss 1420
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Literal question
What was the date of your first birth? I mean the very first time you gave birth, even if the child is no longer living, or whose father is not your current partner.
Post-question
Skip to CM4 only if year of first birth is given. Otherwise, continue with CM3.
Interviewer instructions
You need to obtain the year of the woman's first birth, which means the very first time she gave birth, even if the child is no longer living, or is the child of a partner other than her current one. As with all questions about dates and ages, you may need to probe to obtain the best information. 

Ask for the child's date of birth. If she knows the exact birth date, enter the day, month and year of birth on the lines provided and continue to CM3. You will have to convert the month to a number, as you have been instructed. If the month or day contains only one digit, use a zero to fill in the first space. For example, the month of March is coded as '03'. 

If she does not know the exact birth date, ask her the day, month and year separately. Enter the information as provided. If she does not know the day, circle '98'. 

If she can give the month of birth, convert it to a number and enter it on the line provided. If she cannot give the month, probe to try to estimate the month. If you cannot estimate the child's month of birth from this information, you may need to find out in which season he/she was born. If it is still not possible to estimate the child's month of birth, circle '98' in the space for month of birth. 

If she can give a year of birth, write it in the space provided and go to CM4. If she cannot give the year of the birth, circle '9998' and continue with CM3.
Generated: MAY-29-2015 using the IHSN Microdata Management Toolkit