Table 2: Estimation of the halo WD density based on the sample revised by Salim et al. (2004).
Confid.
$\psi (V_{\alpha },V_{\delta })$ $h(V_{\alpha },V_{\delta })$ $t(V_{\alpha },V_{\delta }\vert r)$

level WDs $\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3) WDs $\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3) WDs $\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3)

99% 19 $(1.8\pm 0.6)\times10^{-5}$ 17 $(1.6\pm 0.6)\times10^{-5}$ 16 $(1.5\pm0.6)\times10^{-5}$

95% 28 $(3.3\pm 0.8)\times10^{-5}$ 18 $(1.8\pm 0.6)\times10^{-5}$ 18 $(1.9 \pm0.6)\times10^{-5}$

**Table 2:** Estimation of the halo WD density based on the sample revised by Salim et al. (2004).
Confid.	$\psi (V_{\alpha },V_{\delta })$	$h(V_{\alpha },V_{\delta })$	$t(V_{\alpha },V_{\delta }\vert r)$
level	WDs	$\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3)	WDs	$\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3)	WDs	$\rho_{\rm WD}$ ( $M_{\odot}$ pc^-3)
99%	19	$(1.8\pm 0.6)\times10^{-5}$	17	$(1.6\pm 0.6)\times10^{-5}$	16	$(1.5\pm0.6)\times10^{-5}$
95%	28	$(3.3\pm 0.8)\times10^{-5}$	18	$(1.8\pm 0.6)\times10^{-5}$	18	$(1.9 \pm0.6)\times10^{-5}$

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