4. 11.49 The 20-city Building Cost Skilled Labor Index has a value of 7458.80 now when the skilled labor wage rate is $41.40 per hour. If the skilled labor wage rate was $30.65 per hour 10 years ago, the skilled labor index value at that time was closest to: 1. 10,074.86 2. 7436.12 3. 5522.03 4. 4027.83