Tabla y grafica por año y mes
| Ene | Feb | Mar | Abr | May | Jun | Jul | Ago | Sep | Oct | Nov | Dic | Promedio | |
| 2007 | 217.78 | 216.50 | 214.45 | 214.04 | 217.41 | 216.88 | 218.85 | 217.52 | 217.26 | 216.12 | 218.84 | 220.02 | 217.16 |
| 2008 | 227.39 | 226.28 | 226.06 | 225.89 | 227.41 | 226.13 | 228.80 | 227.45 | 225.25 | 225.09 | 229.10 | 231.33 | 227.17 |
| 2009 | 239.42 | 239.41 | 234.84 | 234.53 | 235.06 | 236.22 | 237.06 | 235.95 | 234.88 | 233.43 | 234.84 | 235.67 | 235.92 |
| 2010 | 245.02 | 242.58 | 239.43 | 239.32 | 241.86 | 240.83 | 242.46 | 241.61 | 239.69 | 238.91 | 240.29 | 241.53 | 241.11 |
| 2011 | 249.21 | 247.66 | 246.23 | 246.52 | 246.83 | 245.95 | 246.53 | 246.25 | 245.36 | 244.63 | 246.87 | 246.77 | 246.55 |
| 2012 | 256.15 | 255.16 | 251.63 | 252.59 | 254.75 | 253.02 | 255.75 | 254.88 | 252.68 | 251.51 | 251.91 | 253.26 | 253.59 |
| 2013 | 264.57 | 262.49 | 258.56 | 259.49 | 261.71 | 261.29 | 262.85 | 261.94 | 259.92 | 257.97 | 260.30 | 261.77 | 261.05 |
| 2014 | 280.22 | 279.18 | 275.79 | 276.69 | 278.34 | 277.46 | 279.24 | 277.81 | 273.79 | 273.29 | 280.98 | 280.70 | 277.78 |
| 2015 | 286.70 | 285.86 | 284.72 | 284.14 | 288.31 | 286.71 | 289.34 | 287.44 | 289.02 | 288.30 | 290.58 | 294.73 | 287.99 |
| 2016 | 303.64 | 302.64 | 302.54 | 302.76 | 306.14 | 304.86 | 309.42 | 307.74 | 307.19 | 306.46 | 311.18 | 315.65 |