Climate Variability in the Sudano-Guinean Transition Area and Its Impact on Vegetation: The Case of the Lamto Region in Côte D’Ivoire

Table 2

Comparisons between the mean annual rainfall of a given decade and the following decades or the entire period by using Student’s 𝑡-test.

Decades	Decades
	1962–1971	1972–1981	1982–1991	1992–2001	2002–2011	1962–2011
1962–1971	0
1972–1981	1.07	0
1982–1991	0.80	−0.22	0
1992–2001	1.32	0.33	0.51	0
2002–2011	0.01	−1.57	−1.09	−2.02	0
1962–2011	0.79	0.79	−0.43	−1.08	0.87	0

Bold values of the value of student’s 𝑡-test are significant at the 95% confidence level.