In: Civil Engineering
Year |
Pi(cm) |
Year |
Pi(cm) |
1999 |
44.2 |
2010 |
39.2 |
2000 |
47.6 |
2011 |
38.3 |
2001 |
38.5 |
2012 |
46.1 |
2003 |
35.8 |
2013 |
33.1 |
2004 |
40.2 |
2014 |
35.0 |
2005 |
41.2 |
2015 |
39.3 |
2006 |
39.8 |
2016 |
42.0 |
2007 |
39.7 |
2017 |
41.7 |
2008 |
40.5 |
2018 |
37.7 |
2009 |
42.5 |
2019 |
36.6 |
Please clarify each step of the solution.