Kruskal-Wallis test		

Variables: Conso_NbJoursAn_1, Conso_NbJoursAn_3, Conso_NbJoursAn_2, Conso_NbJoursAn_5, Conso_NbJoursAn_4

Groups = 5
df = 4
Total observations = 510

T = 279,29143
P < 0,0001

Adjusted for ties:

T = 279,292176
P < 0,0001

At least one of your sample populations tends to yield larger observations than at least one other sample population.

Kruskal-Wallis: all pairwise comparisons (Dwass-Steel-Chritchlow-Fligner)
Critical q (range) = 3,857656

Conso_NbJoursAn_1 vs. Conso_NbJoursAn_3	significant
(|-14,423606| > 3,857656)	P < 0,0001
Conso_NbJoursAn_1 vs. Conso_NbJoursAn_2	significant
(|-9,887783| > 3,857656)	P < 0,0001
Conso_NbJoursAn_1 vs. Conso_NbJoursAn_5	significant
(|-14,568594| > 3,857656)	P < 0,0001
Conso_NbJoursAn_1 vs. Conso_NbJoursAn_4	significant
(|-15,359036| > 3,857656)	P < 0,0001
Conso_NbJoursAn_3 vs. Conso_NbJoursAn_2	significant
(|-9,633763| > 3,857656)	P < 0,0001
Conso_NbJoursAn_3 vs. Conso_NbJoursAn_5	significant
(|11,48424| > 3,857656)	P < 0,0001
Conso_NbJoursAn_3 vs. Conso_NbJoursAn_4	significant
(|8,915675| > 3,857656)	P < 0,0001
Conso_NbJoursAn_2 vs. Conso_NbJoursAn_5	significant
(|13,942242| > 3,857656)	P < 0,0001
Conso_NbJoursAn_2 vs. Conso_NbJoursAn_4	significant
(|14,485507| > 3,857656)	P < 0,0001
Conso_NbJoursAn_5 vs. Conso_NbJoursAn_4	significant
(|6,152359| > 3,857656)	P = 0,0001

Kruskal-Wallis: all pairwise comparisons (Conover-Inman)
Critical t (505 df) = 1,964673

Conso_NbJoursAn_1 and Conso_NbJoursAn_3	significant
(187,319728 > 27,469958)	P < 0,0001
Conso_NbJoursAn_1 and Conso_NbJoursAn_2	significant
(89,785714 > 29,297712)	P < 0,0001
Conso_NbJoursAn_1 and Conso_NbJoursAn_5	significant
(325,174699 > 30,896807)	P < 0,0001
Conso_NbJoursAn_1 and Conso_NbJoursAn_4	significant
(278,94898 > 29,737102)	P < 0,0001
Conso_NbJoursAn_3 and Conso_NbJoursAn_2	significant
(97,534014 > 24,950829)	P < 0,0001
Conso_NbJoursAn_3 and Conso_NbJoursAn_5	significant
(137,854971 > 26,810458)	P < 0,0001
Conso_NbJoursAn_3 and Conso_NbJoursAn_4	significant
(91,629252 > 25,465333)	P < 0,0001
Conso_NbJoursAn_2 and Conso_NbJoursAn_5	significant
(235,388985 > 28,680271)	P < 0,0001
Conso_NbJoursAn_2 and Conso_NbJoursAn_4	significant
(189,163265 > 27,427003)	P < 0,0001
Conso_NbJoursAn_5 and Conso_NbJoursAn_4	significant
(46,225719 > 29,128977)	P = 0,0019