Table 2.

Analysis of the influence plot (Principal Components: 4, significance for threshold: 0.05).

	free/summer period			confined/autumn period
	EV	objects far outside threshold	responsible variables	EV	objects far outside threshold	responsible variables
Val d'Aosta	90.9%	4/6; 5, 12/10	S∙H; P, S∙P, T∙P	93.4%	15/12	W, W∙P
Piemonte	91.6%	10, 12/10; 4/11	W; W∙P	91.8%	18/12	W, W∙P
Lombardia	92.5%	23/9; 13/10; 6/11	S∙P, T∙P; W∙S; S∙P, T∙P, P∙H	92.6%	18/12	P, W, W∙P
Trento	94.0%	27/6; 31/10; 5/11	S∙H; S∙T, W∙S; P, P∙U	93.2%	24/12, 25/12	S∙P, T∙H
Bolzano	93.9%	18/10; 5/11	S∙H, P∙H; P, P∙H	92.6%	18/12, 26/12	P, W, W∙P
Veneto	93.1%	22/8; 4/11	S∙H; P, P∙H	94.0%	25/12	W, W∙H
Friuli Venezia Giulia	91.0%	24/6; 4/11	S∙H; P, P∙H	92.9%	20/12	W
Emilia-Romagna	92.9%	10/10	S, W∙U	92.9%	12/12	W∙S