Over what span of time are the entries in this excerpt from the diary written? What does Anne reveal has been happening during this period?

The entries in Anne's diary are written between June 12, 1942 and August 1, 1944. The entries start when she got her diary, and stop when her family is found and taken away to the camp. Anne's perspective tends to grow a lot more mature. She thinks about things in a more methodical way, and understands her flaws and mistakes.