Firstly, starting from a 55%:45% female and male student ratio in January, we witnessed a substantial increase in the percentages of female students for three consecutive months and till May, this ratio had become 75%:25%.
Firstly, starting from ￥250,000 in January, the monthly sales volume of Toya experienced constant growths for 7 months in a row and peaked at ￥4.85 million in August.
To begin with, starting from 10 fulltime teachers in January, the number of Toya teachers increased gradually to 11, 14, 20, 25, 40, and eventually reached 48 in December.
Firstly, starting from 18 students in January, the enrollment of TOEFL learners increased steadily for three months in a row and began to gain a stronger momentum of increase from May, finally peaking at 198 in July.
The enrollment of TOEFL learners plunged to 12 in August but bounced back to 48 in September and was followed by another giant increase to 98 in October.
Although the enrollment of TOEFL learners in November plunged again from 98 in October to 26, the dramatic increase in December was enough to make up for the drop against which we found an increase by 121, from 26 to 147.
To begin with, the weekly workload of Toya female teachers rose from 12 hours in January to 14 hours in February and, entering March, the increase accelerated to 18 hours.
Compared with female teachers, the weekly workload of male teachers was relatively low, only 6 hours and 8 hours respectively. However, beginning from March, it started to increase dramatically, first hitting 12 hours, then 16 hours in April, and then reaching 20 hours in May.
In the second half of the year 2007, the weekly workload of male teachers continued to rise from 20 hours in June to 30 hours in October and eventually reached its peak as shown across the board which was 48 hours.
In contrast, the weekly workload of female teachers revealed a trend of decrease: we first saw a drop from 28 hours in September to 24 hours in October, then to 20 in November, and then finally bottoming at 4 hours in December.
During this period, the weekly workload of Toya male teachers, which was 18 hours, was twice as much as that of female teachers, which was 9 hours, but this situation took a sharp turn in the following two months and became 18 hours to 24 hours.
The total student enrollment of IELTS and TOEFL of Toya during March and October of 2007 was 2,400 person times, an increase by 800% over the same period of 2006.
The sales volume of Toya revealed a substantial drop in August: from ￥2.51 million in July to ￥1.24 million, a decrease by more than 100%.
Thanks to the great increase in September, the total income of Toya went up beyond ￥10 million in October.
As the total sales volume of Toya rose from ￥21 million in November to ￥32 million in December, the costs and expenses began to drop by leaps and bounds.
The net income of Toya in December went up from ￥8.52 million in November to ￥11 million thanks to the dramatic drop of costs and expenses.
The average weekly income of high school graduates increased at accelerated speeds, rising from $40 in 1985 to $140 in 2005.
The biggest increase occurred during the period from 1995 to 2005, which saw a dramatic growth from $80 to $140, a growth by over 70%.
We see that although the weekly income of college graduates also witnessed a constant increase, from $80 in 1975 to $150 in 2005, the growth margin was far smaller than that of high school graduates.
Compared with college graduates, the increase margin of master degree graduates faired slightly better and we saw an increase by about $50 during1985-1995 and around $75 during 1995-2005.
Quite unexpectedly, in 1995, the average weekly earnings of master degree graduates drew even with that of PhD graduates, both at $185.
Even though the growth margin of the income of PhD graduates drew apart from that of master degree holders in 2005, the gap was merely $15.
The slightest increase for all the groups of people occurred during the period from 1985 to 1995, with the biggest increase by only $5.
What is unexpected is that the percentage of female smokers hit 21% in 1970, an increase by 4% over 1960.