year car start qual rank finish laps led retired
year
car
start
qual
rank
finish
laps
led
retired
number
number
number
number
number
number
number
number
number number number number number number number number text
1956 14 23 142.535 16 7 200 0 running
which year is the last qual on the chart
WDT NN VBD-AUX DT JJ JJ IN DT NN
1968
select c1 from w order by c1_number desc limit 1