110.94,  Dow Jones index 28 Aug - 18 Dec 1972.  Brockwell and Davis
110.69
110.43
110.56
110.75
110.84
110.46
110.56
110.46
110.05
109.6
109.31
109.31
109.25
109.02
108.54
108.77
109.02
109.44
109.38
109.53
109.89
110.56
110.56
110.72
111.23
111.48
111.58
111.9
112.19
112.06
111.96
111.68
111.36
111.42
112
112.22
112.7
113.15
114.36
114.65
115.06
115.86
116.4
116.44
116.88
118.07
118.51
119.28
119.79
119.7
119.28
119.66
120.14
120.97
121.13
121.55
121.96
122.26
123.79
124.11
124.14
123.37
123.02
122.86
123.02
123.11
123.05
123.05
122.83
123.18
122.67
122.73
122.86
122.67
122.09
122
121.23