(DATA "chap3data2" 
:VARIABLES '("Var0") 
:LABELS '("Obs0" "Obs1" "Obs2" "Obs3" "Obs4" "Obs5" "Obs6" "Obs7" "Obs8"
 "Obs9" "Obs10" "Obs11" "Obs12" "Obs13" "Obs14" "Obs15" "Obs16" "Obs17"
 "Obs18" "Obs19")
:DATA '(5 4 4 4 4 4 3 3 3 3 3 3 3 3 2 2 2 2 1 1))

(summarize-data)