Time	Mean thermal expansion (mm)
2005.50	0
2006.50	1.82
2007.50	0.91
2008.50	2.9
2009.50	4.78
2010.50	4.29
2011.50	4.98
2012.50	6.83
2013.50	9.61
2014.50	11.49
2015.50	14.44
2016.50	12.96