condition mean min max 4 h after light 167.0 167.0 167.0 8 h after light 163.7 140.3 187.1 12 h after light 112.65 53.3 172.0 4 h after dark 144.89999999999998 67.1 222.7 8 h after dark 175.64999999999998 101.1 250.2 12 h after dark 93.4 91.2 95.6