Availability of 1-min Data for 1999 
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1999    JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 
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CPS     ### ### ### ##* **- -** **-     #*- -#- *-* *--
IRT     ### ### *## ### ### ### ### ### ### ### ### ###
LOZ     ### ### ##* ### ##* #*- ##- -*# ##* ### ##* #*#  
MOS     ### ### *## ### ### ### ### ### ### ### ### ###
MSK     ### ##* *#* **# ### ##* ### ### ### #*# ##* *##  
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  "-" - No data;    "*" - gaps;    "#" - complete;