Listado del total de dias con datos de precipitaciones
 BUENOS AIRES        PERGAMINO INTA             
 nro smn:  145 nro OMM:  87484
 AñoxMes  1   2   3   4   5   6   7   8   9  10  11  12
 ----------------------------------------------------------
1988      0   0   0   0   0   0   0   0   0   0   0   0
1989      0   0   0   0   0   0   0   0   0   0   0   0
1990      0   0   0   0   0   0   0   0   0   0   0   0
1991      0   0   0   0   0   0   0   0   0   0   0   0
1992     31  29  31  30  31  30  31  31  30  31  30  31
1993     31  28  31  30  31  30  31  31  30  31  30  31
1994     31  28  31  30   0   0   0   0   0   0   0   0
1995      0   0   0   0   0   0   0   0   0   0   0   0
1996      0   0   0   0   0   0   0   0   0   0   0   0
1997      0   0   0   0   0   0   0   0   0   0   0   0
1998      0   0   0   0   0   0   0   0   0   0   0   0
1999      0   0   0   0   0   0   0   0   0   0   0   0
2000      0   0   0   0   0   0   0   0   0   0   0   0
2001      0   0   0   0   0   0   0   0   0   0   0   0
2002      0   0   0   0   0   0   0   0   0   0   0   0