class       : RasterLayer 
format	    : ascii file
dimensions  : 724, 387, 280188  (nrow, ncol, ncell)
resolution  : 250, 250  (x, y)
extent      : 407604.8, 504354.8, 4054833, 4235833  (xmin, xmax, ymin, ymax)
coord. ref  : WGS 84 / UTM zone 54N

Numbers from R01 to R12 correspond to mean monthly erosivity map for each months from January to December.

Ryear is the mean erosivity map.