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

Location Month 1997 1998 1999 2000 2001 2002
THSI1 1 8 8 5 8 11 10
THSI1 2 7 7 8 8 9 10
THSI1 3 9 8 9 9 9 10
THSI1 4 9 6 8 7 10 10
THSI1 5 9 7 9 9 11 10
THSI1 6 8 8 6 8 10 10
THSI1 7 9 9 8 9 10 11
THSI1 8 9 7 8 5 10 10
THSI1 9 7 7 9 10 10 10
THSI1 10 8 6 8 10 11 10
THSI1 11 8 7 5 10 9 10
THSI1 12 9 5 8 7 10 11