Wobbe index and Gross Calorific Value 2019 Daily Hourly

Wobbe index and Gross Calorific Value 2018 Daily Hourly

Wobbe index and Gross Calorific Value 2017 Daily Hourly

Wobbe index and Gross Calorific Value 2016 Daily Hourly

Wobbe index and Gross Calorific Value 2015

Wobbe index and Gross Calorific Value 2014

Wobbe index and Gross calorific value 2013

Wobbe index and Gross Calorific Value 2009, 2010, 2011, 2012 and 2013