| Shape parameter | Scale parameter | Location parameter |
2011 data | 4.28 | 293.0 | none |
2012 data | 1.10 | 196.6 | none |
2013 data | 1.04 | 151.7 | none |
2014 data | 1.06 | 185.9 | none |
Entire data | 1.78 | 770.5 | 103.3 |
2012-2014 data | 1.10 | 580.3 | −3.9 |