I would like to have this two period in different scales

General
1

I have two data, before 1996, the trend was very high between 0-20000 but after 1996, all I had was very low between 0 -2000

Here is what I have gotten

image
image1335×593 7.23 KB

2

Please show the code that makes the plot.

3

@FJCC , Thank you so much! I already figured this out.