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

Location Month 1997 1998 1999 2000 2001 2002
TRIN1 1 0 0 0 0 10 9
TRIN1 2 0 0 0 0 7 10
TRIN1 3 0 0 0 0 10 10
TRIN1 4 0 0 0 0 9 5
TRIN1 5 0 0 0 0 10 8
TRIN1 6 0 0 0 0 9 10
TRIN1 7 0 0 0 0 5 9
TRIN1 8 0 0 0 0 8 5
TRIN1 9 0 0 0 0 9 4
TRIN1 10 0 0 0 5 9 9
TRIN1 11 0 0 0 7 6 4
TRIN1 12 0 0 0 8 3 10