Haveman Line Puzzle

Our life is often seems like a rollarcoster, complete with the ups and downs. This line discribes our journey. Your job is to figure out the what and when??
E-Mail us with your guesses.

We will update with hints if you need them.

This is the Hint, the points are the following #

2

4.7

3

1.6

4

1.6

5

2.8

6

Ron & Beth