rename variables (xx1 to xx60 =v1 to v60) . 
Recode v1 v3 v8 v9 v12 v14 v15 v16 v18 v23 v24 v27 v29 v30 v31 v33 v38 v39 v42 v44 v45 v46 v48 v54 v55 v57 v59 (1=5) (2=4) (3=3) (4=2) (5=1).
EXECUTE .

compute NFFI=rnd((mean.2(v1,v6,v11,v16,v21,v26,v31,v36,v41,v46,v51,v56))*12).
compute EFFI=rnd((mean.2(v2,v7,v12,v17,v22,v27,v32,v37,v42,v47,v52,v57))*12).
compute OFFI=rnd((mean.2(v3,v8,v13,v18,v23,v28,v33,v38,v43,v48,v53,v58))*12).
compute AFFI=rnd((mean.2(v4,v9,v14,v19,v24,v29,v34,v39,v44,v49,v54,v59))*12).
compute CFFI=rnd((mean.2(v5,v10,v15,v20,v25,v30,v35,v40,v45,v50,v55,v60))*12).