From: Regional climate pattern during two millennia estimated from annual tree rings of Yaku cedar trees: a hint for solar variability?
Sample
Number of rings
Start year
End year
1
1821
64
1884
2
1633
305
1937
3
963
1000
1962
4
883
1053
1935
5
818
1162
1979
6
735
1254
1988
7
546
1443