year vote % place seats place cabinet
year
vote %
place
seats
place
cabinet
number
number
number
number
number
number number rank number rank text
1945 42.4 1st 25 1st yes
what was the difference in vote percent between 1968 and 1974 ?
WP VBD-AUX DT NN IN NN NN IN CD CC CD .
7.6
select ( select c2_number from w where c1_number = 1968 ) - ( select c2_number from w where c1_number = 1974 )