Table 1.

Slope and p statistic for linear fitting of LGS values for the period 2001–2007.

Site	Slope	p	Site	Slope	p
1. Leglise	0.3525	0.04324*	6. Saint-Hubert	0.4432	0.0162*
2. Virton (North)	0.2089	0.29213	7. Wellin	0.2496	0.0332*
3. Etaille	0.3943	0.02538*	8. Momignies	0.2375	0.2218
4. Sivry-Rance	0.1604	0.39400	9. Virton (South)	0.1871	0.3277
5. Ardennes (Fr)	0.2532	0.21977	10. Linchamps (Fr)	0.2496	0.27595

^*Hypothesis of slope = 0 rejected when p < 0.05.