condition mean min max 4 h after light 181.190642 115.687689 246.693595 8 h after light 145.87284499999998 134.568978 157.176712 12 h after light 123.283502 115.547789 131.019215 4 h after dark 193.951723 124.025511 263.877935 8 h after dark 220.0061065 187.210977 252.801236 12 h after dark 277.682938 277.682938 277.682938