29.30 HOwever, the savings above are more than offset by the cost of the purchase of compugraphics photocomposition equipment mentioned above ($119,500), and additional acquisition of reproduction equipment in relation to technological innovations in the production of publications and documentation which includes small offset machines and other equipment ($192,300). c. Conference Services, Vienna I. Programme developments 29.31 The following table shows the work-load of Conference Services, Vienna, during 1980-1981 (actual) and 1982-1983 (estimated). The work-load during the current biennium shows a significant increase as compared to that of the last biennium except with regard to editing. Conference-servicing output, Vienna 1982-1983 {current estimate) 1980-1981 1982 1983 Total (actual) (actual) (estimate) Interpretation (interpreter days) y 4 785 3 911 3 048 6 959 Translation/revision: •ooo of words 11 359 8 312 9 252 17 564 Typing: '000 of words 29 960 19 627 20 292 39 919 Editing: •ooo of words 2 259 850 737 1 587 Printing: •ooo of page impressions y 42 429 48 072 53 347 101 419 !I These output data relate to joint services managed by UNIDO and IAEA respectively on behalf of all Vienna-based units. II. Revised budget estimates (Increase: $1,019,100) 29.32 As can be seen in table 29.3 above, the estimated additional requirements of $1,019,100 are comprised of increases under salaries and common staff costs ($58,100), contractual services ($313,200) and joint activities ($647,800). 29.33 These increases are referred to in details by main object of expenditures in the following paragraphs. Salaries and common staff costs (Increase: $58,100) 29.34 An increase of $58,100 under this heading is the net effect of an increase of $125,800 under temporary assistance and decreases under temporary posts ($48,600) and common staff costs ($19,100). / ... A/C.5/38/49/Add.29 English Page 15 29.35 The increase of $125,800 under temporary assistance is attributable to a 