May Mean Temperatures

wdt_ID	Year	No.Years	Act. Mean Temp	Cum. Mean Temp	Av. Mean Temp
1	1984	1	9.6	9.4	9.4
2	1985	2	10.0	19.4	9.7
3	1986	3	10.9	30.3	10.1
4	1987	4	9.8	40.1	10.0
5	1988	5	11.6	51.7	10.3
6	1989	6	13.3	65.0	10.8
7	1990	7	12.0	77.0	11.0
8	1991	8	10.8	87.7	11.0
9	1992	9	13.0	100.7	11.2
10	1993	10	11.2	112.0	11.2
	Year	No.Years	Act. Mean Temp	Cum. Mean Temp	Av. Mean Temp