| Year | Area in Square Feet (100,00) |
2010 Cost ($Millions) |
Cost Per Square Foot (Dollars) |
|---|---|---|---|
| 1963-1989 | 481 | 1,097 | 23 |
| 1990 | 52 | 124 | 24 |
| 1991 | 80 | 203 | 25 |
| 1992 | 104 | 261 | 25 |
| 1993 | 62 | 163 | 26 |
| 1994 | 65 | 158 | 24 |
| 1995 | 92 | 226 | 25 |
| 1996 | 42 | 92 | 22 |
| 1997 | 82 | 202 | 25 |
| 1998 | 120 | 290 | 24 |
| 1999 | 42 | 130 | 31 |
| 2000 | 65 | 168 | 26 |
| 2001 | 84 | 254 | 30 |
| 2002 | 78 | 356 | 46 |
| 2003 | 76 | 202 | 27 |
| 2004 | 94 | 216 | 23 |
| 2005 | 73 | 211 | 29 |
| 2006 | 94 | 257 | 28 |
| 2007 | 83 | 279 | 33 |
| 2008 | 36 | 104 | 29 |
| 2009 | 68 | 205 | 30 |
| 2010 | 76 | 245 | 32 |
| UnknownYear | 5 | 0 | 0 |
| All | 2,049 | 5,444 | 27 |
