siouxfalls.org: Trends

Year	Total Area of Sioux Falls (sq. miles)*	Square Miles Annexed	Percent increase
1980	40.15	0.4259	1.06%
1981	41.23	1.0793	2.62%
1982	42.13	0.8993	2.13%
1983	42.53	0.4009	0.94%
1984	43.11	0.5828	1.35%
1985	43.57	0.4617	1.06%
1986	44.03	0.4536	1.03%
1987	44.28	0.2489	0.56%
1988	44.47	0.1916	0.43%
1989	44.63	0.1590	0.36%
1990	45.19	0.5627	1.25%
1991	45.32	0.1314	0.29%
1992	47.36	2.0420	4.31%
1993	47.80	0.4365	0.91%
1994	48.73	0.9253	1.90%
1995	49.03	0.3045	0.62%
1996	49.61	0.5835	1.18%
1997	50.19	0.5811	1.16%
1998	54.89	4.6960	8.56%
1999	56.14	1.2471	2.22%
2000	57.77	1.6361	2.83%
2001	58.66	0.8900	1.52%
2002	60.92	2.2600	3.71%
2003	61.51	0.5900	.96%
2004	62.71	1.2000	1.91%
2005	64.53	1.8200	2.82%
2006	67.09	2.5600	3.82%
2007	70.13	3.0300	4.52%
2008	72.95	2.8200	4.02%