Hello,

I´m trying to put vertical labels in a graph. In the line 3158 I would like to write "Beginning of the first wave" and in the line 3122 I would like to write "Beginning of the second wave". I use the following command to create the graph: twoway scatter mean_EU_USweekly_count_cases yearweek if list_EU_US==1, xline(3158) xline(3122).

Can you help me with the code to create the graph?
Thank you in advance.