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

Location Month 1997 1998 1999 2000 2001 2002
PASA1 1 0 0 0 0 7 10
PASA1 2 0 0 0 0 9 10
PASA1 3 0 0 0 0 9 10
PASA1 4 0 0 0 0 10 7
PASA1 5 0 0 0 0 11 10
PASA1 6 0 0 0 0 10 10
PASA1 7 0 0 0 0 5 11
PASA1 8 0 0 0 0 10 7
PASA1 9 0 0 0 0 10 8
PASA1 10 0 0 0 0 11 10
PASA1 11 0 0 0 0 10 9
PASA1 12 0 0 0 0 7 11