| Reference | Mean Speed | Root Mean Cube Speed | ||
| Year | Weibull | Rayleigh | Weibull | Rayleigh |
| 2004 | 25.23 | 79.76 | −0.01 | 43.52 |
| 2005 | 45.36 | 88.11 | −3.68 | 24.65 |
| 2006 | 27.84 | 81.32 | −0.58 | 41.01 |
| 2007 | 29.46 | 82.19 | −0.02 | 40.70 |
| 2008 | 32.53 | 83.70 | −0.32 | 38.16 |
| 2009 | 45.13 | 88.06 | 0.76 | 30.57 |
| 2010 | 33.23 | 84.01 | 0.09 | 38.24 |
| 2011 | 36.95 | 85.52 | 0.32 | 35.90 |
| 2013 | 36.65 | 85.42 | −0.27 | 35.32 |
| 2014 | 38.20 | 85.99 | 0.32 | 35.02 |
| Average | 39.58 | 86.44 | −0.89 | 32.39 |