Chapter 2. The ICT Development Index (IDI) % ( $# )( \"( ( % ( * ) ( % \" < \"( =?$ (>)( 3% 6 \" \"( = $ >, % $ 6+ ) (($ $ ( 5 # $ ( 1) ( % ( ( 1 5 ( ( \" # ( $%( ( $ # ( $ #& % ) * ( 5 $ \" ( (\"+ ( $ ,$$+ \" ( # \" $=:\" ) * % )( $ 8 \" \" \" ( < ) % )* )( + # ( # ( 5 ( # )( ( ( ( # = \"$ >)( # ( % ( \"( $ ) % + )( # $ ( # ( ( % ) % % , $ ( $ + , ((( % 3 )( #+ $ ) Figure 2.2: ICT Development Index: indicators and weights ICT access Ref. value (%) 1. Fixed-telephone lines per 100 inhabitants 60 20 2. Mobile-cellular telephone subscriptions per 100 inhabitants 180 20 3. International Internet bandwidth (bit/s) per Internet user 280’377* 20 4. Percentage of households with a computer 100 20 5. Percentage of households with Internet access 100 20 40 ICT use Ref. value (%) 100 33 6. Percentage of individuals using the Internet 40 60 33 7. Fixed (wired)-broadband Internet subscriptions per 100 inhab. 100 33 8. Active mobile-broadband subscriptions per 100 inhab. ICT skills Ref. value (%) 100 100 100 33 33 33 9. Adult literacy rate 10. Secondary gross enrolment ratio 11. Tertiary gross enrolment ratio 20 Note: * This corresponds to a log value of 5.45, which was used in the normalization step. Source: ITU. 10