condition mean min max 2 h after light 0.9898965 0.32581 1.85544 6 h after light 1.6947526666666666 0.645355 3.42471 10 h after light 2.077807 0.944932 4.61207 14 h after light 2.151951 0.557186 5.96719 18 h after light 2.356357 0.919392 5.87122 2 h after dark 0.9079699999999999 0.145038 2.20578