STATION	t	p-value	RESULT		YEAR OF CHANGE
STATION	t	p-value	α = 0.05	α = 0.1	YEAR OF CHANGE
Boundiali	3.13	0.00	break	break	1975
Ferkessédougou	2.37	0.01	break	break	1971
Korhogo	2.41	0.01	break	break	1971
Ouangolodougou	2.23	0.02	break	break	1970