New NAGS Calculator Shows 0.85 Percent Decrease in Weighted Average for Top 100 Parts; Average Decrease of 0.5 Percent Since Last September for Top 20 Most Popular Parts
September 16, 2009

The Fall 2009 National Auto Glass Specifications International (NAGS) Calculator, which took effect this Monday, September 14, shows a .85 percent decrease for the weighted average for the top 100 parts since the Spring release. For the top 20 most popular parts, there was an average decrease of 0.5 percent since last September.

The largest decrease shown among the top 20 most popular parts was for the DW01256GBNN-which dropped 2.7 percent, from $249.30 to $242.55 since last September. (In May, this same part had seen the biggest increase from a year earlier-it had increased $18.90 over the previous year. CLICK HERE for related story.)

Only four of the 20 most popular parts saw increases in the Fall 2009 Calculator over the previous year. The greatest of these was for the DW01265GBNN, which increased from $247.90 in September 2008 to $262.40 in September 2009-a 5.8 percent rise.
For the top 500 parts, there was a weighted average decrease of -1.35 percent, and for the top 1,500 parts, there was a weighted average decrease of 1.52 percent.

Top 20 Most Popular Parts
Rank Part Sept. 8, 2008 Jan. 12, 2009 May 11, 2009 Sept. 8, 2009 Percent Change from Sept. 2008 to Sept. 2009
1 DW01341GBYN $189.95 $190.00 $188.60 $187.95 -1.1
2 DW01217GBYN $200.15 $199.80 $196.90 $195.55 -2.3
3 DW01549GBYN $194.55 $194.50 $192.60 $192.05 -1.3
4 DW01256GBNN $249.30 $253.30 $255.30 $242.55 -2.7
5 DW01168GBNN $184.30 $184.25 $183.15 $182.75 -0.8
6 DW01206GBYN $189.10 $188.75 $188.05 $188.10 -0.5
7 DW01505GBYN $228.25 $232.85 $233.35 $229.85 +1.3
8 DW01317GBYN $201.30 $203.85 $204.65 $204.25 +1.5
9 DW01099GBNN $183.50 $183.65 $183.00 $182.40 -0.7
10 DW01504GBYN $264.25 264.15 $262.60 $258.20 -2.3
11 DW01226GBNN $218.05 $219.80 $217.25 $217.55 -0.2
12 FW02064GBNN $191.10 $190.95 $189.70 $189.90 -0.6
13 DW01460GBYN $256.90 $262.10 $260.35 $258.95 -0.8
14 DW01257GBYN $261.40 $257.90 $257.90 $256.75 -1.8
15 DW01303GTNN $182.75 $182.35 $182.05 $181.30 -0.8
16 FW02018GBNN $187.30 $186.80 $185.70 $186.10 -0.6
17 DW01265GBNN $247.90 $263.00 $261.25 $262.40 +5.8
18 FW02298GBNN $190.45 $189.35 $187.65 $186.95 -1.8
19 FW02351GBNN 196.50 196.55 $193.95 $193.90 -1.3
20 FW00753GBNN $189.55 $191.25 $190.15 $189.90 +0.2