Milankovitch Cycle. According to the figure below, what is the implied period of

Milankovitch Cycle. According to the figure below, what is the implied period of the Milankovitch cycle between 350,000 years ago and 150,000 years ago? Round your answer to one significant digit.
Earth temperatures predictedfrom the Milankovitch efieet 11 25,000 years ago 10,000 years ago E Predicted solar heating 9 a; 60“ – 3 “J :I E an arW a . _o 70 a m E .3; : Observed a ean temperature a 20 “’ 400,000 300,000 200 .000 100,000 Today Time {years ago}