rr-env-Co-Evol_Quarterly (1974 ) - (1981 )
1974 :
X
X
1:Winter
2:Spring
3:Summer
4:Fall
1975:
X
X
X
X
1976:
X
X
X
X
1977:
X
X
X
X
1978:
X
X
X
X
1979:
X
X
X
X
1:Winter
2:Spring
3:Summer
4:Fall
1980:
X
X
X
X
1981:
X
74: Sp, W
75: 1-4
76: 1-4
77: 1-4
78: 1-4
79: 1-4
80: 1-4
# 29: Spring '81 to 43
81: Sp