Availability of 1-min Data for 1989 
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1989    JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 
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BEY         *## *#*     --*         ### #*# *## ### -*#
CKA     *** *## **# #** *-* *** #** --* ### #** ##* **#
CPS             #*# **#         --* ### ### **# ### #*-
DIK     #-* *** *#*     **# **# **# #*# *** ***
MIR     ### ### ##* **# ### ### ### ### #*# ### #*# ###
SAL         -** #**     -#* ### *** *** **- *** *** ***
SEY     #-* *** *--                 *** ***
TIK         --# *--
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  "-" - No data;    "*" - gaps;    "#" - complete;