condition mean min max 2 h after light 2.070781 0.751796 6.09846 6 h after light 2.6793025 0.209551 7.86583 10 h after light 4.0716185000000005 0.436989 11.3527 14 h after light 1.1127506666666667 0.299713 2.07113 18 h after light 1.0487331666666666 0.46468 1.64954 2 h after dark 2.4549023333333335 0.866723 9.19881