**Table 1:** Mean redshift and luminosity ( $\pm 1\sigma$ ) of the mid-IR samples.
Sample	IRAS		ISO
	$\langle z\rangle$	$\langle {\rm log}~ L_{15}\rangle ^{a}$	$\langle z\rangle$	$\langle {\rm log}~ L_{15}\rangle$
Type-1	$0.03\pm0.02$	$43.87\pm0.87$	$1.23\pm0.71$	$45.22\pm0.78$
Type-2	$0.02\pm0.01$	$43.66\pm0.68$	$0.28\pm0.20$	$43.90\pm0.69$

^a 12 $\mu$ m luminosities from rms have been converted to 15 $\mu$ m using the adopted SED.
In particular the Circinus SED was adopted for type-2 AGN (see Sect. 3.1).

Source LaTeX | All tables | In the text