1999 Ruby Lidar Data Set
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1						d l p
2		d1 l1 p1 d2 l2 p2 d3 l3 p3	d l p	d l p				d l p		d l p
3										d l p
4
5	d l p	d l p	d1 l1 p1 d2 l2 p2					d l p				d l p
6	d l p									d l p
7	d l p
8	d l p					d l p					d l p
9	d l p				d l p	d l p
10			d l p								d1 l1 p1 d2 l2 p2
11	d l p									d l p	d1 l1 p1 d2 l2 p2
12					d l p	d l p	d l p			d3 l3 p3 d2 l2 p2 d1 l1 p1		d l p
13		d l p	d l p				d1 l1 p1 d2 l2 p2					d l p
14	d l p	d l p	d l p			d l p			d l p			d l p
15	d1 l1 p1 d2 l2 p2		d l p
16						d l p					d l p
17				d l p	d l p					d l p		d l p
18			d l p			d l p			d l p	d1 l1 p1 d2 l2 p2
19							d l p				d l p
20			d l p				d l p
21
22	d l p					d l p
23									d l p	d l p	d l p
24										d l p
25		d l p			d l p			d l p		d l p
26				d l p	d l p
27		d l p						d l p
28		d l p	d l p							d l p
29	d1 l1 p1 d2 l2 p2		d l p			d l p
30	d l p			d l p	d l p	d l p			d l p
31												d l p
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec