\begin{figure}[!b]
\center
\begin{tabular}{|@{}c@{} | r | r | r  r | r @{~} r  @{~}|r|@{}  @{}|r|@{} }\hline
 &  &  & \multicolumn{2}{c|}{50\% } & \multicolumn{2}{c|}{(75-25)th } & & \\
 &  &  & \multicolumn{2}{c|}{percentile} & \multicolumn{2}{c|}{percentile} & & \\
 &  &  & \multicolumn{2}{c|}{(median)} & \multicolumn{2}{c|}{(spread)} & Median & Spread\\
&  & & $a=$ & $t=$ & $a=$ & $t=$ & improv. &improv. \\
Win &  Goal & Treatment  & as is & to be & as is & to be & $\frac{a-t}{a}$ & $\frac{a-t}{a}$\\\hline
\multicolumn{9}{|c|}{NASA93ii Flight}\\\hline
	&	defects	&	SEESAW	&	1276	&	626	&	3737	&	2311	&	51\%	&	38\%\\
	&	defects	&	W	&	2042	&	1688	&	3992	&	2501	&	17\%	&	37\%\\\hline
	&	effort	&	SEESAW	&	159	&	72	&	378	&	192	&	55\%	&	49\%\\
	&	effort	&	W	&	265	&	183	&	416	&	242	&	31\%	&	42\%\\\hline
	&	months	&	SEESAW	&	21	&	15	&	13	&	8.6	&	27\%	&	33\%\\
	&	months	&	W	&	22	&	20	&	15	&	11.1	&	5\%	&	24\%\\\hline
\multicolumn{9}{|c|}{NASA93ii Ground}\\\hline
	&	defects	&	SEESAW	&	2006	&	688	&	4254	&	2203	&	66\%	&	48\%\\
	&	defects	&	W	&	2007	&	933	&	3763	&	1121	&	54\%	&	70\%\\\hline
	&	effort	&	SEESAW	&	240	&	95	&	390	&	166	&	61\%	&	57\%\\
	&	effort	&	W	&	177	&	81	&	361	&	156	&	54\%	&	57\%\\\hline
	&	months	&	SEESAW	&	22	&	16	&	15	&	8.8	&	28\%	&	41\%\\
	&	months	&	W	&	21	&	17	&	14	&	6.2	&	19\%	&	55\%\\\hline
\multicolumn{9}{|c|}{NASA93ii OSP}\\\hline
*	&	defects	&	W	&	1586	&	767	&	3557	&	1741	&	52\%	&	51\%\\
	&	defects	&	SEESAW	&	1265	&	1696	&	3722	&	3077	&	\xxx -34\%	&	17\%\\\hline
*	&	effort	&	W	&	210	&	99	&	557	&	179	&	53\%	&	68\%\\
	&	effort	&	SEESAW	&	150	&	174	&	411	&	372	&	\xxx -16\%	&	10\%\\\hline
*	&	months	&	W	&	21	&	15	&	15	&	9.0	&	28\%	&	39\%\\
	&	months	&	SEESAW	&	21	&	21	&	15	&	12	&	\xxx -2\%	&	21\%\\\hline
\multicolumn{9}{|c|}{NASA93ii OSP2}\\\hline
*	&	defects	&	W	&	2077	&	744	&	4222	&	1356	&	64\%	&	68\%\\
	&	defects	&	SEESAW	&	2042	&	1172	&	4369	&	3127	&	43\%	&	28\%\\\hline
*	&	effort	&	W	&	239	&	79	&	465	&	145	&	67\%	&	69\%\\
	&	effort	&	SEESAW	&	210	&	118	&	514	&	275	&	44\%	&	46\%\\\hline
	&	months	&	W	&	21	&	15	&	17	&	6.8	&	31\%	&	60\%\\
	&	months	&	SEESAW	&	21	&	16	&	17	&	11	&	25\%	&	36\%\\\hline
\end{tabular}

\caption{Changes in median and spread for the NASA93 dataset.
}\label{fig:nasa93results}
\end{figure}	
	
\begin{figure}[!b]
\center
\begin{tabular}{|@{}c@{} | r | r | r  r | r @{~} r  @{~}|r|@{}  @{}|r|@{} }\hline
\multicolumn{9}{|c|}{COC81ii Flight}\\\hline
	&	defects	&	W	&	1529	&	1265	&	1867	&	2369	&	17\%	&	\xxx -27\%\\
	&	defects	&	SEESAW	&	1487	&	1629	&	2054	&	1965	&	\xxx -9\%	&	4\%\\\hline
	&	effort	&	W	&	86	&	81	&	181	&	200	&	6\%	&	\xxx -11\%\\
	&	effort	&	SEESAW	&	89	&	106	&	246	&	237	&	\xxx -19\%	&	4\%\\\hline
*	&	months	&	W	&	18	&	16	&	6.5	&	10	&	11\%	&	\xxx -49\%\\
	&	months	&	SEESAW	&	18	&	20	&	10	&	8.9	&	\xxx -8\%	&	8\%\\\hline
\multicolumn{9}{|c|}{COC81ii Ground}\\\hline
	&	defects	&	W	&	1541	&	1248	&	1902	&	2102	&	19\%	&	\xxx -11\%\\
	&	defects	&	SEESAW	&	1650	&	1496	&	2445	&	2499	&	9\%	&	\xxx -2\%\\\hline
	&	effort	&	W	&	98	&	65	&	199	&	223	&	33\%	&	\xxx -12\%\\
	&	effort	&	SEESAW	&	106	&	122	&	383	&	372	&	\xxx -15\%	&	3\%\\\hline
*	&	months	&	W	&	18	&	15	&	9.2	&	10	&	17\%	&	\xxx -7\%\\
	&	months	&	SEESAW	&	19	&	19	&	10	&	10	&\xxx	0\%	&	\xxx -5\%\\\hline
\multicolumn{9}{|c|}{COC81ii OSP}\\\hline
*	&	defects	&	W	&	1496	&	1068	&	1787	&	2054	&	29\%	&	\xxx -15\%\\
	&	defects	&	SEESAW	&	1496	&	1765	&	2233	&	2233	&	\xxx -18\%	&\xxx	0\%\\\hline
	&	effort	&	SEESAW	&	93	&	83	&	332	&	200	&	11\%	&	40\%\\
	&	effort	&	W	&	88	&	93	&	209	&	205	&	\xxx -5\%	&	2\%\\\hline
*	&	months	&	W	&	19	&	14	&	9.0	&	8.9	&	22\%	&	1\%\\
	&	months	&	SEESAW	&	19	&	19	&	9.4	&	10	&	\xxx -3\%	&	\xxx -4\%\\\hline
\multicolumn{9}{|c|}{COC81ii OSP2}\\\hline
*	&	defects	&	W	&	1850	&	1802	&	2697	&	2405	&	3\%	&	11\%\\
	&	defects	&	SEESAW	&	1473	&	2269	&	1769	&	2061	&	\xxx -54\%	&	\xxx -17\%\\\hline
*	&	effort	&	W	&	122	&	130	&	431	&	356	&	\xxx -7\%	&	17\%\\
	&	effort	&	SEESAW	&	98	&	447	&	289	&	288	&	\xxx -356\%	&\xxx 	0\%\\\hline
	&	months	&	SEESAW	&	19	&	19	&	7.9	&	8.6	&	\xxx -3\%	&	\xxx -9\%\\
	&	months	&	W	&	20	&	21	&	11	&	10	&	\xxx -4\%	&	10\%\\\hline
\end{tabular}

\caption{Changes in median and spread for the COC81 dataset.
}\label{fig:cocomo81results}
\end{figure}

