The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.Letter from Daren Dunnell, dated October 2008:"As National Statistician I have been asked to reply to your question regarding what the average fertility rate in (a) Leeds West, (b) Leeds Metropolitan District and (c) the UK was in each five-year period since 1978. (228230)""The table below provides the average Total Fertility Rate for the UK, Leeds Metropolitan District and Leeds West parliamentary constituency for each five-year period, where possible.""The average Total Fertility Rates are calculated using live births from the birth registration system and population estimates. All figures are based on current geographical boundaries and for Leeds Metropolitan District are available for 1982 onwards. Population estimates by parliamentary constituency are only available from 2001; hence fertility rates for Leeds West are shown for 2001 onwards."<Table width="100%" summary="" cellspacing="3" cellpadding="3" border="0"><thead><tr><th>Average total fertility rate for UK, Leeds Metropolitan District and Leeds West parliamentary constituency: five-year periods, 1978-2007</th></tr></thead><TR><TD></TD><TD>Average Total Fertility Rate¹</TD></TR><TR><TD></TD><TD>UK</TD><TD>Leeds Metropolitan District</TD><TD>Leeds West² (parliamentary constituency)</TD></TR><TR><TD>1978-82</TD><TD>1.82</TD><TD>1.6³</TD><TD>—</TD></TR><TR><TD>1983-87</TD><TD>1.78</TD><TD>1.72</TD><TD>—</TD></TR><TR><TD>1988-92</TD><TD>1.81</TD><TD>1.75</TD><TD>—</TD></TR><TR><TD>1993-97</TD><TD>1.73</TD><TD>1.60</TD><TD>—</TD></TR><TR><TD>1998-2002</TD><TD>1.66</TD><TD>1.48</TD><TD>1.374</TD></TR><TR><TD>2003-075</TD><TD>1.80</TD><TD>1.54</TD><TD>1.41</TD></TR><tfoot><TR><td>¹ The average Total Fertility Rate for each five-year period has been calculated by averaging the Total Fertility Rate for each individual year within the period.</td></TR><TR><td>² The Total Fertility Rates for Leeds West have been calculated using population estimates by parliamentary constituency which have been published as 'Experimental Statistics'.</td></TR><TR><td>³ Total Fertility Rate for Leeds Metropolitan District for 1982 only.</td></TR><TR><td>4 Average Total Fertility Rate for Leeds West for 2001-2002 only.</td></TR><TR><td>5 The 2007 Total Fertility Rates for the UK, Leeds Metropolitan District and Leeds West parliamentary constituency are provisional.</td></TR></tfoot></Table>