One tag by day (average values)

        
DataItem:1109
Description:Outflow PO4-P
Unit:mg/L
Method:Merck anal. APHA-7150-1
DT Value
2014-11-19 6.70000
2015-01-21 3.00000
2015-01-26 2.60000
2015-02-12 8.70000
2015-04-20 4.60000
2015-04-28 12.20000
2015-05-14 15.30000
2015-05-20 18.10000
2015-05-26 17.00000
2015-06-01 21.90000
2015-06-30 38.30000
2015-07-10 23.20000
2015-08-24 38.90000
2015-10-23 113.30000
2015-11-03 96.00000
2015-11-13 28.70000
2015-11-19 32.30000
2015-11-26 32.60000
2015-12-02 36.30000
2015-12-11 13.76667
2015-12-23 45.00000
2016-01-11 15.80000
2016-01-25 15.20000
2016-09-14 74.90000

29.76528

Row count 24