9. Personnel Costs

	Year ended 31 December 2011	Year ended 31 December 2010
Salaries and wages	8,839,084	7,928,959
Contribution to the state pension fund	2,234,582	1,452,049
Recognized actuarial loss	119,959	248,336
Compulsory social security contributions	611,558	426,969
Finance aid to employees and pensioners	415,052	369,249
Current service cost	101,759	84,783
Unused vacation provision	330,781	218,623
Annual bonus provision	216,240	312,945
Past service cost	139,725	95,328
Other personnel costs	423,960	498,059
	13,432,700	11,635,300

The average number of employees (including production and non production staff) was 31,184 in 2011 (2010: 29,256 employees).