 
<prompt> Percentage of households with a female head | (1990.0, 6.4) (1997.0, 9.6) (2002.0, 11.5) (2007.0, 10.3) (2009.0, 11.4) (2012.0, 12.9) <response> Figure 4 shows that the percent of female headed households significantly increased in the intervals 1990-2002 and 2007-2012 (see Table 2). The percentage was 6.4% in 1990 which more than doubled to reach 12.9% in 2012. In the period between 2002 and 2007, the percentage significantly decreased by 1.1 percentage points before increasing again in 2009  