obs1 obs2 obs3 obs4
40.77 39.95 40.86 39.21
38.94 39.7 40.37 39.88
40.43 40.27 40.91 40.05
39.55 40.1 39.39 40.89
41.01 39.07 39.85 40.32
39.06 39.9 39.84 40.22
39.63 39.42 40.04 39.5
41.05 40.74 40.43 39.4
40.28 40.89 39.61 40.48
39.28 40.49 38.88 40.72
40.57 40.04 40.85 40.51
39.9 40.67 40.51 40.53
40.7 40.54 40.73 40.45
39.58 40.9 39.62 39.83
40.16 40.69 40.37 39.69
40.46 40.21 40.09 40.58