#define F_YEAR      301
#define F_CRED_PREC 302
#define F_FREQ_VERS 303
#define F_SHEET_PLA 304
#define F_CODDITTA  305
#define F_RAGSOC    306         
#define F_CRED_COST 308
#define F_CODATT    101
#define F_DESATT    150
#define F_TIPOATT   102
#define F_PRORATA   103
#define F_P8	    104
#define F_P8B	    105
#define F_P9	    106