dem <-read_csv('dem.csv', show_col_types =FALSE)tfr <-select(dem, LocTypeName, Location, Time, TFR) %>%filter( LocTypeName=="Geographic region"& Location !="Africa"& Time <=2020& Time >=1970)gtfr <-ggplot(data = tfr, mapping =aes(x = Time, y = TFR, color=Location))gtfr <- gtfr +geom_line()gtfr <- gtfr +theme_tufte(base_size=12, base_family ="sans") +labs(title="Children per Woman by Region", subtitle="Evolution of the Fertility Rate from 1970 to 2020", caption="United Nations, Department of Economic and Social Affairs") +guides(color=guide_legend(title="Region"))gtfr <- gtfr +scale_color_viridis(discrete =TRUE)gtfr <- gtfr +ylab(NULL) +xlab("Year") +scale_x_continuous(breaks =seq(1970,2020,10)) +theme(legend.position ="bottom")gtfr