\begin{table}%t2 \par \caption{\label{tab2}The {\it FWHM} and asymmetry of the H$\alpha$ and H$\beta$ broad emission lines in the period of 1996--2006.} \small%\centering \par \begin{tabular}{cccccccc} \hline \hline Year\_month & JD & {\it FWHM} H$\beta\pm\sigma$& $A$ H$\beta\pm\sigma$& {\it FWHM} H$\alpha\pm\sigma$ &$A$ H$\alpha\pm\sigma$& \multicolumn{2}{c}{$F$(5100$)\pm \sigma$}\\ & 2~400~000+ & $ {\rm km~s^{-1}}$ & & ${\rm km~s^{-1}}$ & & \multicolumn{2}{c}{$10^{-14} \ \rm erg \ cm^{-2} \ s^{-1}~ \AA^{-1}$} \\ \hline 1&2&3&4&5&6&7\\ \hline 1996b\_01& 50096.0 & 6860 $\pm$ 566 & 0.904 $\pm$ 0.043 & 5332 $\pm$ 324 & 0.799 $\pm$ 0.030 & 9.031 $\pm$ 0.322\\ 1996b\_03 & 50163.4 & 6182 $\pm$ 303& 0.877 $\pm$ 0.069& 5036 $\pm$ 291 & 0.782 $\pm$ 0.021 & 11.219 $\pm$ 0.617\\ 1996b\_04 & 50200.8 & 6183 $\pm$ 479 & 0.877 $\pm$ 0.072 & -- &-- -- & 9.226 $\pm$ 0.527\\ 1996b\_06 & 50249.3 & 6028 $\pm$ 434 & 0.797 $\pm$ 0.060 & -- & -- & 12.641 --\\ 1996b\_07 & 50277.8 & 6367 $\pm$ 479 & 0.783 $\pm$ 0.048 & 5058 $\pm$ 259 & 0.762 $\pm$ 0.011 & 11.822 $\pm$ 0.473\\ 1996b\_11 & 50402.6 & 5659 $\pm$ 348 & 0.896 $\pm$ 0.035 & -- & -- & 10.649 --\\ 1997b\_03 & 50510.9 & 5568 $\pm$ 305 & 0.884 $\pm$ 0.048 & 4808 $\pm$ 420 & 0.853 $\pm$ 0.019 & 8.350 $\pm$ 0.716\\ 1997b\_04 & 50547.9 & 5567 $\pm$ 218 & 0.946 $\pm$ 0.046 & 4512 $\pm$ 323 & 0.854 $\pm$ 0.005 & 6.897 $\pm$ 0.375\\ \hline 1996-1997&& 6051 $\pm$ 449&0.871 $\pm$ 0.054 & 4959 $\pm$ 307&0.810 $\pm$ 0.042& 9.979$\pm$1.950\\ \hline 1998b\_01 & 50838.0 & 5844 $\pm$ 173 &1.159 $\pm$ 0.005 & 4831 $\pm$ 323 & 0.947 $\pm$ 0.050 & 6.280 $\pm$ 0.277\\ 1998b\_02 & 50867.4 & 6059 $\pm$ 130 & 1.189 $\pm$ 0.021 & -- & -- & 6.219 --\\ 1998r\_04& 50934.5 & -- & -- & 5058 $\pm$ 259 & 0.981 $\pm$ 0.051 & 6.387 --\\ 1998b\_05& 50940.4 & 6489 $\pm$ 42 & 1.131 $\pm$ 0.016 & 5150 $\pm$ 388 & 0.933 $\pm$ 0.071 & 6.049 $\pm$ 0.385\\ 1998b\_06& 50988.3 & 6458 $\pm$ 86 & 1.059 $\pm$ 0.029 & 4922 $\pm$ 323 & 0.931 $\pm$ 0.073 & 7.974 $\pm$ 0.776\\ 1998b\_07 & 51025.3 & 6214 $\pm$ 88 & 1.082 $\pm$ 0.000 & 4762 $\pm$ 549 & 0.935 $\pm$ 0.067 & 6.205 --\\ 1998\_11-12 & 51148.6 & 6275 $\pm$ 1 & 1.062 $\pm$ 0.028 & 4694 $\pm$ 387 & 0.909 $\pm$ 0.053 & 4.975 $\pm$ 1.011 \\ \hline 1998&& 6223 $\pm$ 245&1.114 $\pm$ 0.054 & 4903 $\pm$ 176&0.939 $\pm$ 0.024&6.298$\pm$0.880\\ \hline 1999b\_01& 51202.6 & 5967 $\pm$ 174 & 1.063 $\pm$ 0.001 & 4831 $\pm$ 194 &0.863 $\pm$ 0.079 & 6.245 $\pm$ 0.243 \\ 1999b\_02 & 51223.1 & 5721 $\pm$ 174 & 0.957 $\pm$ 0.031 & -- & -- & 5.873 $\pm$ 0.258 \\ 1999b\_03 & 51260.5 & 5475 $\pm$ 261 & 1.045 $\pm$ 0.064 & 4398 $\pm$ 291 &0.910 $\pm$ 0.045 & 5.793 $\pm$ 0.296\\ 1999b\_04 & 51281.5 & 5567 $\pm$ 218 & 1.011 $\pm$ 0.078 & 4010 $\pm$ 388 & 0.959 $\pm$ 0.001 & 5.397 $\pm$ 0.146 \\ 1999b\_06 & 51346.4 & 5352 $\pm$ 522 & 1.173 $\pm$ 0.058 & -- & -- & 2.753 --\\ 1999b\_12 & 51515.6 & 5106 $\pm$ 609 & 1.023 $\pm$ 0.032 & 4352 $\pm$ 226 & 0.836 $\pm$ 0.045 & 2.782 $\pm$ 0.016 \\ \hline 1999&& 5531 $\pm$ 298&1.045 $\pm$ 0.072 & 4903 $\pm$ 337&0.892 $\pm$ 0.054&4.807$\pm$1.603\\ \hline 2000b\_01 & 51553.6 & -- & -- & 4010 $\pm$ 388 &0.744 $\pm$ 0.041 & 4.155 --\\ 2000\_1\_2 & 51571.6 & 4890 $\pm$ 566 & 0.960 $\pm$ 0.124 & -- & -- & 3.868 $\pm$ 0.406 \\ 2000b\_02 & 51589.5 & 4767 $\pm$ 566 & 1.036 $\pm$ 0.090 & 4056 $\pm$ 194 & 0.801 $\pm$ 0.055 & 3.581 $\pm$ 0.029 \\ 2000b\_06 & 51711.3 & -- & -- & 6244 $\pm$ 775 & 1.014$\pm$ 0.162 & 1.434 $\pm$ 0.115 \\ 2000\_6\_7 & 51728.6 & 6336 $\pm$ 262 & 1.423 $\pm$ 0.060 & -- & -- & 1.974 $\pm$ 0.764 \\ 2000b\_11 & 51874.1 & 3968 $\pm$ 739 & 1.014 $\pm$ 0.020 & -- & -- & 1.778 $\pm$ 0.177 \\ 2000b\_12 & 51883.6 & 3383 $\pm$ 783 &1.353 $\pm$ 0.096 & 2985 $\pm$ 871 & 0.805 $\pm$ 0.013 & 1.427 $\pm$ 0.09\\ 2001b\_02 & 51947.9 & 6367 $\pm$ 914 & 1.523 $\pm$ 0.015 & 4603 $\pm$ 646 & 0.907 $\pm$ 0.106 & 1.538 $\pm$ 0.320 \\ 2001b\_11 & 52238.0 & 6152 $\pm$ 261 & 1.127 $\pm$ 0.027 & -- & -- & 3.331 $\pm$ 0.007 \\ \hline 2000-2001&& 5123 $\pm$ 1199&1.205 $\pm$ 0.224 & 4380 $\pm$ 1195&0.854 $\pm$ 0.107&2.565$\pm$1.193\\ \hline 2002b\_01 & 52299.4 & 6183 $\pm$ 217 & 1.284 $\pm$ 0.006 & 4785 $\pm$ 903 & 0.957 $\pm$ 0.134 & 3.680 --\\ 2002r\_03 & 52345.8 & -- & -- & 4603 $\pm$ 775 & 1.173 $\pm$ 0.124 & 3.348 $\pm$ 0.862 \\ 2002\_3\_4 & 52357.3 & 6060 $\pm$ 479 & 1.706 $\pm$ 0.239 & -- & -- & 3.645 $\pm$ 0.420 \\ 2002r\_04 & 52368.7 & -- & -- & 5150 $\pm$ 838 & 1.196 $\pm$ 0.076 & 3.942 --\\ 2002b\_05 & 52398.7 & 6336 $\pm$ 173 & 1.369 $\pm$ 0.050 & 5605 $\pm$ 581 & 1.203 $\pm$ 0.005 & 3.283 $\pm$ 0.021 \\ 2002b\_06 & 52439.0 & 7012 $\pm$ 521 & 1.285 $\pm$ 0.088 & 5582 $\pm$ 226 &1.414 $\pm$ 0.115 & 3.903 $\pm$ 0.292 \\ 2002b\_12 & 52621.0 & 6121 $\pm$ 305 & 1.489 $\pm$ 0.051 & 5970 $\pm$ 387 & 1.374 $\pm$ 0.129 & 3.467 $\pm$ 0.157 \\ \hline 2002&& 6490 $\pm$ 465&1.427 $\pm$ 0.177 & 5283 $\pm$ 528&1.220 $\pm$ 0.163&3.629$\pm$0.243\\ \hline 2003b\_01 & 52665.9 & 5905 $\pm$ 348 & 1.710 $\pm$ 0.112 & 5651 $\pm$ 129 & 1.373 $\pm$ 0.117 & 5.072 --\\ 2003b\_03 & 52723.8 & 6336 $\pm$ 434 & 1.344 $\pm$ 0.066 & -- & -- & 4.541 --\\ 2003b\_05 & 52777.1 & 5906 $\pm$ 87 & 1.559 $\pm$ 0.009 & 5287 $\pm$ 324 &1.260 $\pm$ 0.027 & 5.283 $\pm$ 0.205 \\ 2003b\_06 & 52813.7 & 5660$ \pm$ 349 & 1.630 $\pm$ 0.050 & 5013 $\pm$ 388 &1.163 $\pm$ 0.038 & 4.184 --\\ 2003b\_11 & 52966.8 & 5505 $\pm$ 217 & 1.358 $\pm$ 0.082 & -- & -- & 3.478 $\pm$ 0.193 \\ 2003b\_12 & 52995.6 & 5414 $\pm$ 523 & 1.352 $\pm$ 0.083 & -- & -- & 3.515 --\\ \hline 2003&& 5788 $\pm$ 336&1.492 $\pm$ 0.162 & 5317 $\pm$ 320&1.265 $\pm$ 0.105&4.346$\pm$0.763\\ \hline 2004b\_01 & 53019.5 & 5351 $\pm$ 261 & 1.456 $\pm$ 0.124 & -- & -- & 3.851 --\\ 2004b\_12 & 53349.0 & 6889 $\pm$ 173 & 1.240 $\pm$ 0.057 & 5879 $\pm$ 389 &1.422 $\pm$ 0.076 & 2.932 $\pm$ 0.105 \\ \hline 2004&& 6120 $\pm$ 1088&1.348 $\pm$ 0.153 & 5879 $\pm$ 389&1.422 $\pm$ 0.076&3.392$\pm$0.650\\ \hline 2005\_1\_2 & 53402.8 & 7013 $\pm$ 783 & 1.332 $\pm$ 0.076 & -- & -- & 2.218 $\pm$ 0.308 \\ 2005b\_02 & 53417.5 & -- & -- & 6586 $\pm$ 356 & 1.359 $\pm$ 0.072 & 2.040 --\\ 2005b\_05 & 53505.3 & 8305 $\pm$ 262 & 1.093 $\pm$ 0.043 & 6882 $\pm$ 582 & 1.265 $\pm$ 0.105 & 2.140 $\pm$ 0.037\\ 2005b\_06 & 53535.0 & 8427 $\pm$ 348 & 0.957 $\pm$ 0.041 &7635 $\pm$ 357 & 1.100 $\pm$ 0.058 & 1.841 $\pm$ 0.142 \\ 2005b\_11 & 53704.0 & 6059 $\pm$ 130 & 1.402 $\pm$ 0.031 & -- & -- & 3.567 --\\ 2005b\_12 & 53711.5 & 5967 $\pm$ 88 & 1.395 $\pm$ 0.007 & -- & -- & 2.911 $\pm$ 0.177\\ \hline 2005&& 7154 $\pm$ 1180&1.236 $\pm$ 0.200 & 7034 $\pm$ 540&1.241 $\pm$ 0.131&2.953$\pm$0.656\\ \hline 2006b\_01 & 53762.4 & 6797 $\pm$ 218 & 1.188 $\pm$ 0.021 &6015 $\pm$ 710 & 1.449 $\pm$ 0.202 & 1.939 $\pm$ 0.179 \\ 2006b\_02 & 53788.0 & 6582 $\pm$ 174 & 1.161 $\pm$ 0.027 & 5925 $\pm$ 518 & 1.403 $\pm$ 0.145 & 1.926 $\pm$ 0.016\\ 2006b\_03 & 53816.9 & 6704 $\pm$ 86 & 1.117 $\pm$ 0.002 & 5446 $\pm$ 613 & 1.546 $\pm$ 0.222 & 2.894 $\pm$ 0.293 \\ 2006b\_04 & 53845.1 & 5691 $\pm$ 305 & 1.373 $\pm$ 0.044 &5401 $\pm$ 356 & 1.480 $\pm$ 0.069 & 3.390 $\pm$ 0.103 \\ \hline 2006&& 6444 $\pm$ 509&1.210 $\pm$ 0.113 & 5697 $\pm$ 318&1.470 $\pm$ 0.060&2.537$\pm$0.727\\ \hline mean 96-06&& 6021 $\pm$ 851&1.187 $\pm$ 0.237 & 5164 $\pm$ 873&1.072 $\pm$ 0.245&\\ \hline Paper I&& 6110 $\pm$ 440&1.056 $\pm$ 0.018 & 4650 $\pm$ 420&1.00 $\pm$ 0.023&\\ \hline \end{tabular} \smallskip Columns: 1 -- year and month (e.g., 1996\_01 = 1996\_January); 2 -- Julian date (JD); 3 -- the {\it FWHM} of H$\beta$; 4 -- the asymmetry of H$\beta$; 5 -- the {\it FWHM} of H$\alpha$ ; 6 -- the asymmetry of H$\alpha$; 7 -- $F$(5100), the continuum flux at $\lambda 5100~ \AA$ in units of $10^{-14}$~erg~cm$^{-2}$~s$^{-1}$~\AA$^{-1}$ and $\sigma$(cnt), the estimated continuum flux error in the same units.\end{table}