condition mean min max 4 h after light 7.479195000000001 5.33228 9.62611 8 h after light 6.250415 5.94685 6.55398 12 h after light 7.3742 7.18999 7.55841 4 h after dark 8.4634 7.74012 9.05414 8 h after dark 7.40294 7.01801 7.78826 12 h after dark 6.904719999999999 5.7894 8.03258