Literacy Rates of major states of India have the gap between maximum and minimum female literacy rates over the states in two consecutive census years $2001 and 2011$. Check whether it has declined or not?

Literacy rates of major States in India

MAJOR INDIAN STATES	$2001$ MALE	$2001$ FEMALE	$2011$MALE	$2011$FEMALE
ANDHRA PRADESH	$70.3$	$50.4$	$75.6$	$59.7$
ASSAM	$71.3$	$54.6$	$78.8$	$67.3$
BIHAR	$59.7$	$33.1$	$73.4$	$53.3$
JHANRKHAND	$67.3$	$38.9$	$78.4$	$56.2$
GUJARAT	$79.7$	$57.8$	$87.2$	$70.7$
HARYANA	$78.5$	$55.7$	$85.3$	$66.8$
KARNATAKA	$76.1$	$56.9$	$82.9$	$68.1$
KERELA	$94.2$	$87.7$	$96$	$92$
MADHYA PRADESH	$76.1$	$50.3$	$80.5$	$60$
CHATTISGARH	$77.4$	$51.9$	$81.5$	$60.6$
MAHARASHTRA	$86$	$67$	$89.8$	$75.5$
ODISHA	$75.3$	$50.5$	$82.4$	$64.4$
PUNJAB	$75.2$	$63.4$	$81.5$	$71.3$
RAJASTHAN	$75.7$	$43.9$	$80.5$	$52.7$
TAMIL NADU	$82.4$	$64.4$	$86.8$	$73.9$
UTTAR PRADESH	$68.8$	$42.2$	$79.2$	$59.3$
UTTARAKHAND	$83.3$	$59.6$	$88.3$	$70.7$
WEST BENGAL	$77.0$	$59.6$	$82.7$	$71.2$
INDIA	$75.3$	$53.7$	$82.1$	$65.5$