volume year names articles pages images maps number of copies
volume
year
names
articles
pages
images
maps
number of copies
number
minimum_number minimum_parsed minimum_year maximum_number maximum_parsed maximum_year
number
number
number
number
number
number timespan text number number number number number
1 1974 ա-արգինա 3442 720 1294 75 100000
what is the difference in years between the first volume published and the 13th volume published ?
WP VBD-AUX DT NN IN NNS IN DT JJ NN VBN CC DT JJ NN VBN .
13
select abs ( ( select c2_minimum_year from w where c1 = 1 ) - ( select c2_minimum_year from w where c1_number = 13 ) )