27.21 Agregar etiquetas a una diagrama de barras

ggplot(data = saber %>% tidyr::drop_na(), mapping = aes(x = estu_genero)) +
  geom_bar(fill = "gray70", color = "gray90") + 
  geom_text(aes(label = percent(..count../sum(..count..))), 
             stat = "count", vjust = -.5, color = "Black") +
  theme_minimal()