(meteorobs) the population indices

[rahmani_sahar]

Hello
We are going to analyze the data of Geminids meteor shower but we 
don't know how we can account the population index. We analyzed the 
data of Geminids meteor shower tow years ago. The method used there 
to obtain the population indices (the method suggested by IMO) 
consists of the equation mentioned below:
å Ni (lm – mi) / N

In which Ni is the number of the meteors observed with the magnitude 
of mi (the letter "i" can gain different values considering the 
magnitude distribution.), lm is the limiting magnitude and N is the 
total number of the meteors observed in the considering interval. 
This equation delivers a set of corresponding <Delta m>. Using Table, 
we converted <Delta m> into population indices (this will give us the 
r-values for our main effective observing periods.).
r	<Delta m>	r	<Delta m>
1.5	5.830	3.1	2.750
1.6	5.301	3.2	2.682
1.7	4.894	3.3	2.618
1.8	4.568	3.4	2.559
1.9	4.298	3.5	2.503
2.0	4.069	3.6	2.450
2.1	3.872	3.7	2.400
2.2	3.700	3.8	2.353
2.3	3.549	3.9	2.308
2.4	3.413	4.0	2.266
2.5	3.291	4.1	2.226
2.6	3.180	4.2	2.187
2.7	3.079	4.3	2.151
2.8	2.987	4.4	2.116
2.9	2.902	4.5	2.082
3.0	2.823		

But we wants to know where this table come from and how can we 
account them. Can you tell us about it?
Sahar Rahmani