1. Workers Distribution by Characteristics 

 ● Average age and period of continuous service 

As of June 2005, the average age of workers of companies with five or more full-time workers is 37.7, older by 0.2 year than 2004. The average age of men is 39.2, older by 0.3 than 2004, whereas the average age of women is 34.3, younger by 0.2 than last year. 
The average period of continuous service of the workers is 5.8 years, shorter by 0.1 year than 2004. The average period of continuous service of men is 6.6 years which is the same as 2004, whereas that of women is 4.0 shorter by 0.1 than 2004.

● Workers distribution by education 

Workers tend to be more educated than before.「University graduates or those with higher education」is 31.7%, up by 2.8% point than 2004, whereas the proportion of「high school graduates」is 43.1% and that of「college graduates」is 16.2%, down by 1.2% point and 0.1% point respectively. 

● Workers distribution by education and wage group 

Workers distribution by wage group and education shows that typically those with low education get low income, whereas those with high education receive high income.「High school graduates」take up only 6.2% of the workers with the monthly income of 4 million won or higher, whereas university graduates or those with higher education account for 24.3% of the wage group. 

□ Wage distribution of workers of the manufacturing industry by age 

The average age of workers of the manufacturing industry is 37.1, showing that the aging of manufacturing workers which started in 1999 with 35.3 continues. In particular, the proportion of workers aged 40 or older in the total manufacturing workers has remarkably increased since the financial crisis in 1998 from 32.8% in 1999 to 39.4% in 2005. 

2. Monthly Income (Fixed Income+Extra Income) Level and Gap

 ● Monthly income level and gap by education 

Taking the monthly income of an average「high school graduate」as 100, the monthly income of an average「university graduate or one with higher education」is around 154.9 (1.5 times), slightly higher than 152.3 in 2004. The income level of「college graduates」is almost the same as that of「high school graduates」.

● Monthly income level and gap by experience

Taking the monthly income of workers with the experience of「less than one year」as 100, the income of workers with the experience of「10 years or longer」is approximately 190.5 (1.9 times), slightly lower than 191.3 in 2004.  The income level by experience does not show remarkable changes with the passage of time. But it is considered as the most important factor that decides the income level.

Note: The average monthly income of workers with less than 1 year of experience is counted as 100.

● Monthly income level and gap by company size

The bigger the size of the company is, the higher the monthly income of workers is. The trend has not changed. The monthly income gap by company size shows that when the average monthly income of workers of companies with 10～29 workers is counted as 100, that of workers of companies with 500 or more workers is around 127.8 (1.3 times), higher than 127.7 in 2004. 

 Note: The average monthly income of workers of companies with 10～29 workers is counted as 100. 

 ● Monthly income level and gap by gender and age

 Taking the monthly income of「those aged 25～29」as 100, men「aged 45～49」receive the highest monthly income of 159.2 (1.6 times). Workers aged 50 or older receive less and less. Compared to workers「aged 25~29」, the income levels of those「aged 50～54」, those「aged 55～59」, and those「aged 60 or older」are 154.1, 129.7, and 99.3, respectively. 
Unlike men, women record the highest monthly income when they are aged 30 to 34. Women aged 35 or older receive less and less. Compared to workers「aged 25~29」, the income levels of those「aged 50～54」, those「aged 55～59」, and those「aged 60 or older」are 86.1, 80.1 and 70.8, respectively. 

● Monthly income level and gap by industry and age

Looking at the monthly income trend of different age groups by industry, the highest monthly income is recorded in the age groups of those「aged 40～44」in「the manufacturing industry」where there is a high proportion of production workers and those「aged 50～54」in the「finance and insurance industry」. There is no significant difference by age in「transportation」and「accommodation and restaurants」.

● Monthly income level and gap by occupation and age

Looking at the monthly income trend of different age groups by occupation, 「managers」and「experts」record the highest monthly income when they are aged 55～59, whereas office workers in general record the highest monthly income when they are aged 45～49.