year tournament venue result extra
year
tournament
venue
result
extra
number
address
number
number
number text address rank unitnum
2002 european indoor championships vienna, austria 5th 2.04 pbi
what is the total number of tournaments in the year 2006 ?
WP VBD-AUX DT JJ NN IN NNS IN DT NN CD .
4
select count ( c2 ) from w where c1_number = 2006