Wenyi Zhang
Research expert covering Greater China
Detailed statistics
Number of current registered drug users in China 2018-2022
Detailed statistics
Drug volume seized in China 2015-2022
Detailed statistics
Number of drug-related arrests in China 2015-2022
Distribution of illicit drug users worldwide as of 2021, by gender and drug
Distribution of illicit drug users worldwide as of 2021, by gender and drug
Preventative measures against drug abuse in Germany 2019-2022, by substance
Share of preventative measures against drug abuse in Germany from 2019 to 2022, by substance
Number of illicit drug users worldwide by drug 2012-2021
Estimated number of illicit drug users worldwide from 2012 to 2021, by drug* (in millions)
Number of substance abuse treatment facilities in the U.S. in 2022, by type of care
Number of substance abuse treatment facilities in the U.S. as of 2022, by type of care offered
Drug users infected with HIV by world region 2021
Number of drug users with HIV infections in 2021, by world region*
Number of substance abuse and mental health counselors employed by U.S. state 2023
Number of substance abuse, behavioral disorder, and mental health counselors employed in the United States in 2023, by state
Number of mental health/substance abuse social workers employed by U.S. state 2023
Number of mental health and substance abuse social workers employed in the United States in 2023, by state
Number of people treated in Romania because of substance abuse 2021, by drug type
Number of people admitted for treatment in Romania because of substance abuse in 2021, by drug type
Share of U.S. adults with select substance abuse problems in family as of 2023
Percentage of adults in the United States who reported someone in their family had select substance abuse problems at some point in their lifetime as of 2023
Number of global illicit drug users by drug 2020
Number of illicit drug users in the world by drug type 2020* (in millions)
Number of substance abuse treatment facilities in the U.S. 2003-2022
Total number of substance abuse treatment facilities in the U.S. from 2003 to 2022
Number of substance abuse treatment facilities in the U.S. by operation type 2022
Number of substance abuse treatment facilities in the U.S. as of 2022, by operation type
Share of substance abuse treatment facilities in the U.S. by type of care 2022
Distribution of substance abuse treatment facilities in the U.S. as of 2022, by type of care offered
Share of substance abuse treatment facilities in the U.S. with special programs 2020
Percentage of substance abuse treatment facilities in the U.S. with select specifically tailored programs as of 2020
Share of substance abuse treatment facilities in the U.S. by type 2022
Distribution of substance abuse treatment facilities in the U.S. as of 2022, by operation type
Annual wage of substance abuse/mental health counselors employed by U.S. state 2021
Annual wage of substance abuse, behavioral disorder, and mental health counselors employed in the United States in 2021, by state (in U.S. dollars)
Hourly wage of substance abuse/mental health counselors employed by U.S. state 2023
Hourly wage of substance abuse, behavioral disorder, and mental health counselors employed in the United States in 2023, by state (in U.S. dollars)
Drug abuse cases Spain 2011-2022
Number of drug abuse cases registered in Spain from 2011 to 2022
Number of registered drug users in China 2022, by main drug type
Number of registered drug users in China in 2022, by main drug type (in 1,000s)
Number of opioid prescriptions U.S. 2006-2022
Number of annual opioid prescriptions in the U.S. from 2006 to 2022
Number of U.S. Americans who used illicit drugs in their lifetime 2022, by drug type
Number of people in the U.S. who used selected illicit drugs in their lifetime as of 2022, by drug type (in thousands)
Deaths caused by psychoactive drug abuse in Spain 2005-2021, by gender
Number of deaths as a result of accidental poisoning from psychoactive drug abuse in Spain from 2005 to 2022, by gender
Relapse rate after drug use treatment South Korea 2022
Rate of relapse after treatment for drug use in South Korea as of April 2022
Opioid misuse among U.S. LGB adults in the past year as of 2022, by drug
Number of U.S. lesbian, gay or bisexual adults reporting opioid misuse in the past year as of 2021, by drug (in thousands)
Number of users entering drug treatment in Portugal in 2021, by drug and type
Number of users entering specialized drug treatment in Portugal in 2021, by drug and type
Number of users entering drug treatment in Germany in 2021, by drug
Number of users entering specialized drug treatment in Germany in 2021, by drug
Substance use among adults in the U.S. by any mental illness 2022
Substance use among adults in the United States as of 2022, by any mental illness
Prevalence of HIV among drug users by world region 2021
Prevalence of HIV among drug users in 2021, by world region*
Illicit drug use disorder among U.S. adults by level of mental illness 2022
Illicit drug use disorder among adults in the United States as of 2022, by level of mental illness*
Students using at least one illicit drug as of 2022 in Italy, by substance
Percentage of students who had consumed at least one psychoactive drug in Italy as of 2022, by substance
People using at least one illicit drug in 2022 in Italy, by substance
Percentage of people who consumed at least one psychoactive drug in Italy during 2022, by substance
England: Young people in treatment for substance misuse 2005-2022
Number of young people in treatment for substance misuse in England from 2005/06 to 2021/22
Distribution of treated addicts in Italy 2022, by primary substance
Distribution of individuals treated for drug addiction in public facilities in Italy as of 2022, by primary substance of abuse
Distribution of female addicts in Italy 2022, by primary substance
Distribution of females treated for drug addiction in public facilities in Italy as of 2022, by primary substance of abuse
Distribution of male addicts in Italy 2022, by primary substance
Distribution of males treated for drug addiction in public facilities in Italy as of 2022, by primary substance of abuse
Number of U.S. psychostimulant overdose deaths from 2011-2021, by opioid involvement
Number of psychostimulant overdose deaths in the United States from 2011 to 2021, by concurrent opioid involvement*
Share of U.S. cocaine overdose deaths with opioid involvement in 2021, by region
Percentage of cocaine overdose deaths with concurrent opioid involvement in the United States in 2021, by region*
First-time drug use sources South Korea 2022
Sources of first-time drug purchase in South Korea as of April 2022
First-time drug use cause South Korea 2022
Reasons for first-time drug use in South Korea as of April 2022
Current drug use sources South Korea 2022
Sources of current drug purchases in South Korea as of April 2022
Current drug use cause South Korea 2022
Reasons for current drug use in South Korea as of April 2022
U.S. opioid overdose deaths number from 1999 to 2022
Number of opioid overdose deaths in the U.S. from 1999 to 2022
U.S. opioid overdose death rate from 1999 to 2022
Death rate due to opioid overdose in the U.S. from 1999 to 2022 (per 100,000 population)
Share of deaths from opioid overdose in the U.S. in 2021, by age
Distribution of opioid overdose deaths in the U.S. in 2021, by age
Total substance abuse funding by National Institutes for Health 2013-2024
Total substance abuse funding by the National Institutes for Health (NIH) from FY 2013 to 2024 (in million U.S. dollars)
Number of worldwide users of opioids 2015 to 2021, by region
Number of opioid users worldwide from 2015 to 2021, by region (in millions)
Drug overdose death rate U.S. 2021, by state
Drug overdose death rate in the United States in 2021, by state (per 100,000 population)
Number of U.S. cocaine overdose deaths from 2011 to 2021, by opioid involvement
Number of cocaine overdose deaths in the United States from 2011 to 2021, by concurrent opioid involvement
Rate of U.S. cocaine overdose deaths from 2011 to 2021, by opioid involvement
Rate of cocaine overdose deaths in the United States from 2011 to 2021, by concurrent opioid involvement* (per 100,000 population)
England: Vulnerabilities in young people in treatment for substance misuse 2021/22
Share of vulnerabilities identified in young people starting treatment for substance misuse in England in 2021/22
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