Number of measurements available in each month during the year of 1997-2002

Location Month 1997 1998 1999 2000 2001 2002
STAR1 1 0 0 0 0 11 10
STAR1 2 0 0 0 0 9 10
STAR1 3 0 0 0 5 9 10
STAR1 4 0 0 0 8 9 10
STAR1 5 0 0 0 9 11 10
STAR1 6 0 0 0 8 10 10
STAR1 7 0 0 0 7 10 11
STAR1 8 0 0 0 7 9 9
STAR1 9 0 0 0 10 10 10
STAR1 10 0 0 0 9 11 10
STAR1 11 0 0 0 10 10 10
STAR1 12 0 0 0 9 10 11