| تطور مساحة
  وإنتاج وغلة محصول الذرة الصفراء 1990,1980,1970- 2011  | 
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|  Development of area, production and yield of
  maize crop 1970,1980,1990,2011  | 
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| المساحة : ألف هكتار | الانــتاج : ألف طن | الـغـلـة : طن/هـ | ||
| Area: 1000 hectare | production: 1000 ton | Yield: ton / ha | ||
| السنوات | مساحة | إنتاج | غلة | |
| Years | Area | Production | Yield | |
| 1970 | 6 | 8 | 1.4 | |
| 1980 | 23 | 47 | 2.1 | |
| 1990 | 60 | 180 | 3. | |
| 1991 | 60 | 225 | 3.7 | |
| 1992 | 68 | 215 | 3.2 | |
| 1993 | 63 | 200 | 3.2 | |
| 1994 | 66 | 204 | 3.1 | |
| 1995 | 69 | 199 | 2.9 | |
| 1996 | 73 | 250 | 3.4 | |
| 1997 | 75 | 303 | 4.1 | |
| 1998 | 73 | 285 | 3.9 | |
| 1999 | 50 | 181 | 3.6 | |
| 2000 | 55 | 191 | 3.4 | |
| 2001 | 64 | 216 | 3.4 | |
| 2002 | 57 | 232 | 4.0 | |
| 2003 | 62 | 227 | 3.7 | |
| 2004 | 57 | 210 | 3.7 | |
| 2005 | 51 | 187 | 3.6 | |
| 2006 | 45 | 159 | 3.5 | |
| 2007 | 50 | 177 | 3.5 | |
| 2008 | 71 | 281 | 4.0 | |
| 2009 | 42 | 183 | 4.4 | |
| 2010 | 38 | 133 | 3.5 | |
| 2011 | 59 | 298 | 5 | |