chore(notes): Add year-tracker for screening pool

Added simple tracker for years done in the screening pool,
and those still outstanding for now.

03-supplementary_data/review-pool-years-done.md

@@ -0,0 +1,28 @@
+# Years done of overall sample pool
+
+- [x] 2000
+- [x] 2001
+- [ ] 2002
+- [ ] 2003
+- [ ] 2004
+- [ ] 2005
+- [ ] 2006
+- [ ] 2007
+- [ ] 2008
+- [ ] 2009
+
+- [ ] 2010
+- [ ] 2011
+- [ ] 2012
+- [ ] 2013
+- [x] 2014
+- [ ] 2015
+
+- [ ] 2016
+- [ ] 2017
+- [x] 2018
+- [x] 2019
+- [x] 2020
+- [x] 2021
+- [x] 2022
+- [x] 2023