1850 2
1849 0
1848 0
1848 1
1847 0
1847 1
1846 0
1846 2
1845 0
1845 1
1844 1
1843 0
1843 1
1842 0
1840 0
1840 1
1839 0
1838 2
1837 0
1837 4