Table 3: Comparisons of our calculated WD formation rate with previous results.
Formation rate (pc^-3 yr^-1) Sample Reference

$2.58\times 10^{-13}$ 531 DA WDs from SDSS this work

$(0.1{-}2)\times 10^{-10}$ 89 WDs Green (1980)

$(3.9{-}6.1)\times 10^{-13}$ 353 DA WDs from PG Fleming et al. (1986)

$2.3\times10^{-12}$ Weidemann (1991)

$(7{-}10)\times 10^{-13}$ 90 hot WDs from EUVE Vennes et al. (1997)

$6\times10^{-13}$ 348 DA WDs from PG Liebert et al. (2005)

**Table 3:** Comparisons of our calculated WD formation rate with previous results.
Formation rate (pc^-3 yr^-1)	Sample	Reference
$2.58\times 10^{-13}$	531 DA WDs from SDSS	this work
$(0.1{-}2)\times 10^{-10}$	89 WDs	Green (1980)
$(3.9{-}6.1)\times 10^{-13}$	353 DA WDs from PG	Fleming et al. (1986)
$2.3\times10^{-12}$		Weidemann (1991)
$(7{-}10)\times 10^{-13}$	90 hot WDs from EUVE	Vennes et al. (1997)
$6\times10^{-13}$	348 DA WDs from PG	Liebert et al. (2005)

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