En 1670... 1°,30'

1680... 2,40... 1°,10 ouest

1690... 5,23... 2,43

1700... 8,12... 2,49

1710... 11,18... 3,06

1720... 13,0... 1,42

1730... 14,25... 1,25

1740... 15,45... 1,20

1750... 16,42... 0,57

1760... 18,20.. 1,38

1770... 19,50... 1,30

1780... 20,44... 0,54

1790... 21,52... 1,08