 
<prompt> Mean ideal number of children for ever-married women age 15-49 for the survey years 1990, 1997, 2002, 2007, 2009, and 2012, with 95% confidence intervals | (1990.0, 4.4) (1997.0, 4.2) (2002.0, 4.2) (2007.0, 3.9) (2009.0, 4.2) (2012.0, 3.9) <response> There has been a slight decrease in the ideal number across the full interval of time except for an increase between 2007 and 2009. These changes, although small, are all significant except for no significant change between 1997 and 2002  