I can't get the graph to separate the years on the X-axis

Code:

ggplot(data=trend4) + geom_point(mapping = aes(x = reorder(church4, year), y = gini_net, color = country)) + xlab("Religiosity") + ylab("Country GDP") data % mutate(Religiosity = case_when(Religiosity >= 1960 & Religiosity = 1970 & Religiosity = 1980 & Religiosity = 1990 & Religiosity = 2000 & Religiosity

37.5- 35.0 - 32.5 - country Germany Country GDP 30.0 - Ireland United States 27.5 - 25.0 - Religiosity