year mo zed etazed eta
1957 01 0.299644073080987 -2.88858214258309 0.299644073080987
1957 02 6.65899301002187 1.98423282441835 6.65899301002187
1957 03 10.0424885196069 5.4176493981775 10.0424885196069
1957 04 11.4582195910838 5.89470616809418 11.4582195910838
1957 05 13.6553289958084 7.92369439389889 13.6553289958084
1957 06 20.4047393429909 14.9085924842416 20.4047393429909
1957 07 21.3132523239552 15.6469968493137 21.3132523239552
1957 08 19.7315872872249 14.2067270873051 19.7315872872249
1957 09 16.6218627179971 11.4419409834695 16.6218627179971
1957 10 11.9505073809357 8.25237080376674 11.9505073809357
1957 11 7.15076532696886 3.41906760984278 7.15076532696886
1957 12 2.36498551331769 -1.0454008215557 2.36498551331769
