Año Nacional Cd. de México Mérida Morelia Guadalajara Monterrey Mexicali Cd. Juárez Acapulco Culiacán León Puebla San Luis Potosí Tapachula Toluca Torreón Veracruz Villahermosa Tampico Chihuahua Hermosillo Monclova Córdova Aguascalientes Tijuana Matamoros Colima La Paz Chetumal Jacona Fresnillo Iguala Huatabampo Tulancingo Cortazar Cd. Jiménez 1980 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 1981 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.6 0.5 0.5 0.5 0.4 0.4 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1982 0.8 0.9 0.8 0.8 0.8 0.8 0.8 0.7 0.8 0.8 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.9 0.8 0.9 0.8 0.9 0.7 0.8 0.7 0.8 0.6 0.8 0.8 0.8 0.8 0.8 0.9 0.8 0.8 1983 1.6 1.7 1.6 1.5 1.6 1.6 1.8 1.6 1.6 1.6 1.5 1.5 1.6 1.7 1.6 1.6 1.6 1.7 1.8 1.6 1.7 1.7 1.7 1.5 1.7 1.5 1.5 1.3 1.7 1.6 1.6 1.5 1.6 1.7 1.6 1.6 1984 2.7 2.7 2.6 2.6 2.7 2.7 2.9 2.6 2.6 2.8 2.5 2.5 2.7 2.8 2.7 2.8 2.6 2.8 3.0 2.7 2.9 2.8 2.8 2.5 2.7 2.5 2.6 2.3 2.8 2.7 2.8 2.6 2.7 2.7 2.7 2.7 1985 4.3 4.3 4.2 4.2 4.3 4.3 4.5 4.2 4.1 4.4 4.1 3.9 4.2 4.4 4.2 4.3 4.0 4.5 4.7 4.3 4.6 4.4 4.4 4.0 4.3 4.1 4.2 3.6 4.4 4.2 4.5 4.2 4.3 4.3 4.2 4.3 1986 8.0 8.0 7.6 7.7 8.0 7.9 8.6 8.4 7.6 8.1 7.6 7.3 7.9 7.9 8.0 8.2 7.6 8.1 8.9 8.1 8.5 8.2 8.2 7.4 8.2 7.7 7.9 7.0 8.2 7.8 8.5 8.1 8.1 8.0 7.7 8.1 1987 18.5 18.3 17.8 18.1 18.9 18.6 19.7 19.4 18.1 18.8 17.8 17.8 18.3 18.7 18.1 18.6 18.0 18.8 20.5 18.9 19.3 19.0 18.9 17.5 19.5 18.4 18.3 16.8 18.7 18.3 19.6 18.9 18.7 18.4 17.6 19.2 1988 39.6 38.2 38.4 40.1 39.7 41.9 42.0 38.8 39.9 38.2 37.5 39.1 41.7 39.8 40.3 40.0 41.3 42.9 40.6 40.7 41.0 42.1 37.8 42.0 41.2 40.2 37.2 39.4 39.1 41.3 40.3 40.3 39.4 38.0 41.3 1989 47.5 46.9 46.0 46.9 49.2 47.0 49.3 49.6 46.1 47.7 46.3 44.7 45.9 49.8 46.3 47.8 47.5 49.5 50.2 47.8 48.8 47.5 49.5 45.7 49.6 50.8 48.3 46.4 48.0 47.9 49.6 48.8 48.2 47.2 45.7 48.5 1990 60.1 60.1 59.6 59.2 60.8 59.6 62.0 61.0 58.7 60.6 59.1 57.1 57.9 61.6 58.6 59.5 60.0 61.9 62.5 59.8 60.5 60.1 61.1 57.9 61.8 62.4 60.7 57.9 59.8 60.4 61.6 60.9 59.8 61.6 58.5 61.3 1991 73.8 73.5 73.4 72.9 74.1 73.9 75.4 74.5 73.1 75.1 73.3 71.7 72.5 74.5 72.5 74.2 73.1 75.8 75.6 73.3 74.9 74.3 74.9 72.7 74.9 75.7 73.8 71.3 74.0 74.3 75.3 73.7 73.6 75.2 71.8 74.8 1992 85.2 85.4 84.2 84.4 85.4 84.9 85.3 85.4 84.4 85.9 85.4 83.3 93.9 85.4 84.2 84.8 84.5 86.6 86.3 84.0 86.1 85.2 85.5 84.3 85.4 85.7 84.2 83.7 85.3 86.0 85.4 84.8 84.0 85.5 84.3 85.3 1993 93.5 93.7 92.5 92.8 93.7 93.4 93.0 93.2 93.5 94.1 94.0 91.6 92.6 93.1 93.1 92.9 93.2 94.3 94.2 92.8 93.9 93.2 93.6 93.3 93.7 90.9 92.6 92.7 94.2 94.2 93.5 93.3 93.2 93.5 92.8 93.2 1994 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 1995 135.0 135.9 133.4 134.6 134.3 132.3 136.0 136.5 134.6 134.5 135.3 136.6 134.6 133.1 133.7 135.1 130.2 131.2 135.3 130.2 136.0 136.8 131.5 134.0 141.7 137.2 133.1 134.3 131.2 137.8 133.4 131.7 135.0 135.0 135.5 132.3 1996 181.4 183.6 178.0 180.5 179.3 175.5 182.3 182.0 179.1 182.8 180.2 180.1 182.0 177.1 177.4 178.4 171.9 174.7 180.5 173.3 186.5 186.7 174.5 178.3 194.3 182.1 178.7 182.6 174.6 183.0 178.1 175.4 188.0 180.8 182.9 176.8 1997 218.8 224.1 213.5 215.4 214.4 209.4 220.6 217.7 214.6 222.0 214.4 214.0 218.1 211.4 212.6 213.2 204.8 209.7 216.7 208.1 227.8 224.5 208.2 212.5 232.9 219.8 214.5 220.1 207.9 217.5 212.6 210.3 230.0 215.5 219.0 212.3