condition mean min max 4 h after light 3.271239 3.1217509999999997 3.4180660000000005 8 h after light 2.25958 1.561 2.67949 12 h after light 1.772563 1.525492 2.128214 16 h after light 3.123917 2.571124 3.717082 4 h after dark 2.6345140000000002 2.3233040000000003 3.05868 8 h after dark 2.0783403333333332 1.602626 2.966899