2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1945
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933
1932
1931
1930
1929
1928
1927
1926
1925
1924
1923
1922
1921
1920
1919
1918
1917
1916
1915
1914
1913
1912
1911
1910
1908
1906
1905
1904
1903
1902
1901
1900
1898
1897
1896
1894
1893
1892
1891
1890
1888
1886
1883
1882
1879
1876
1875
1870
1867
1866
1865
1861
1859
1854
1851
1849
1848
1821
1815
1812
1808
1806
1805
1798
1796
1794
1793
1791
1790
1785
1784
1776
1773
1762
1732
1717
1712
1706
1687
1669
1666
1662
1656
1654
1642
1609
1608
1607
1581
1580
1572
1564
1558
1552
1545
1543
1529
1521
1519
1517
1510
1504
1502
1500
1492
1481
1453
1451
1450
1440
1438
1434
1431
1402
1400
1389
1351
1347
1300
1263
1260
1223
1206
1203
1187
1095
899
843
800
742
630
570
540
538
536
476
330
325
150
79
70
69
66
64
34
33
30
23
9
1
-5
-6
-31
-47
-55
-63
-69
-100
-106
-128
-138
-196
-287
-323
-350
-365
-384
-427
-450
-469
-480
-563
-580
-587
-600
-634
-800
-910
-957
-990
-1000
-1041
-1078
-1177
-1180
-1190
-1200
-1208
-1249
-1252
-1300
-1303
-1319
-1330
-1340
-1350
-1400
-1500
-1550
-1700
-1750
-1800
-1850
-2000
-2100
-2200
-2300
-2349
-2580
-2590
-2600
-2650
-3000
-3100
-3500
-4000
-6500
-8800
-9000
-9500
-10000
-12500
-12800
-17000
-20000
-70000
-75000
-90000
-100000
-120000
-200000
-450000
-1800000
-2100000
-2500000
-3 MYA
-4 MYA
-7 MYA
-20 MYA
-23 MYA
-31 MYA
-47 MYA
-55 MYA
-66 MYA
-100 MYA
-145 MYA
-150 MYA
-160 MYA
-200 MYA
-201 MYA
-250 MYA
-252 MYA
-300 MYA
-360 MYA
-370 MYA
-419 MYA
-444 MYA
-450 MYA
-485 MYA
-520 MYA
-525 MYA
-541 MYA
-545 MYA
-635 MYA
-650 MYA
-1000 MYA
-1250 MYA
-1600 MYA
-1800 MYA
-2000 MYA
-2300 MYA
-2400 MYA
-2500 MYA
-3000 MYA
-3500 MYA
-3800 MYA
-4000 MYA
-4200 MYA
-4400 MYA
-4500 MYA
-4540 MYA
-11000 MYA
-13400 MYA
-13700 MYA