phase
Values
1
phase one - initial cases2
phase two - sub-sampled casesNA(d)
don't knowNA(i)
iapNA(j)
I don't have a jobNA(m)
dk, na, iapNA(n)
no answerNA(p)
not imputableNA(r)
refusedNA(s)
skipped on webNA(u)
uncodeableNA(x)
not available in this releaseNA(y)
not available in this yearNA(z)
see codebook