stamp issue date stamp set #cards card set ref qty. issued
stamp issue date
stamp set
#cards
card set ref
qty . issued
number parsed year month day
number
date text text text number
16 may 1973 county cricket, 1873-1973 one phq 1 20000
how many stamp sets had at least 50,000 issued ?
WRB JJ NN NNS VBD-AUX IN JJS CD VBN .
4
select count ( c2 ) from w where c5_number >= 50000