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

Location Month 1997 1998 1999 2000 2001 2002
TRCR1 1 0 0 0 0 0 10
TRCR1 2 0 0 0 0 0 10
TRCR1 3 0 0 0 0 0 8
TRCR1 4 0 0 0 0 0 8
TRCR1 5 0 0 0 0 0 10
TRCR1 6 0 0 0 0 0 10
TRCR1 7 0 0 0 0 0 11
TRCR1 8 0 0 0 0 0 10
TRCR1 9 0 0 0 0 6 10
TRCR1 10 0 0 0 0 11 10
TRCR1 11 0 0 0 0 8 10
TRCR1 12 0 0 0 0 10 11