1970 +30 → 20001999 -29 → 19701970 +29 → 19991940 +30 → 19701910 +30 → 19401939 -29 → 19101968 -29 → 19391998 -30 → 19681969 +29 → 19981940 +29 → 19691911 +29 → 19401882 +29 → 19111912 -30 → 18821939 -27 → 19121969 -30 → 19391939 +30 → 19691910 +29 → 19391880 +30 → 19101850 +30 → 18801820 +30 → 18501849 -29 → 18201819 +30 → 18491789 +30 → 18191760 +29 → 17891731 +29 → 1760
