[NTG-context] ctxluacode inside bTABLE

I try make a table with some random numbers but I found a problem with this code: \starttext \ctxluacode{v=math.random(400,600)/10;context("%0.1f",v) ;} \bTABLE \bTR\bTD Distance (cm) \eTD\bTD $\Delta t$ (s) \eTD\eTR \bTR\bTD[nr=3] \ctxluacode{v=math.random(400,600)/10;context("%0.1f",v) ;} \eTD\bTD t1 \eTD\eTR \bTR\bTD t2 \eTD\eTR \bTR\bTD t3 \eTD\eTR \eTABLE \stoptext \ctxluacode{v=math.random(400,600)/10;context("%0.1f",v) ;} don't work inside the bTABLE environment. Thanks in advance. Jorge