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Selection of a subset for ticks labels

I have loaded a long serie of interest rate at https://data.oecd.org/interest/short-term-interest-rates.htm#indicator-chart. Then I have loaded Pandas to manipulate thoses interest rates.

import pandas as pd
int_rates


A some column are without interest I have applied

ir3=int_rates.loc[23522 : 29300,'TIME':'Value']


Until now I have no problems. But now I want to plot my serie

import matplotlib.pyplot as plt
ir3.plot(x="TIME", y="Value")


the problem is that x gives too much information. How can I use only a subset of x for labelizing the ticks ?